CO2 – Informed Comment https://www.juancole.com Thoughts on the Middle East, History and Religion Tue, 08 Oct 2024 04:13:05 +0000 en-US hourly 1 https://wordpress.org/?v=5.8.10 CO2-Driven Climate Change causes Hurricane Milton to Explode into Cat 5 as it Heads for Florida https://www.juancole.com/2024/10/hurricane-explode-florida.html Tue, 08 Oct 2024 04:02:01 +0000 https://www.juancole.com/?p=220862 By Ali Sarhadi, Georgia Institute of Technology | –

(The Conversation) – Hurricane Milton went from barely hurricane strength to a dangerous Category 5 storm in less than 24 hours as it headed across the Gulf of Mexico toward Florida.

As its wind speed increased, Milton became one of the most rapidly intensifying storms on record. And with 180 mph sustained winds on Oct. 7, 2024, and very low pressure, it also became one of the strongest storms of the year.

Less than two weeks after Hurricane Helene’s devastating impact, this kind of storm was the last thing Florida wanted to see. Hurricane Milton was expected to make landfall as a major hurricane late on Oct. 9 or early Oct. 10 and had already prompted widespread evacuations.

A chart show's Milton's projected strength on a path across the Gulf of Mexico and then Florida.
Hurricane Milton’s projected storm track, as of midday Oct. 7, 2024, shows how quickly it grew from formation into a major hurricane (M). Storm tracks are projections, and Milton’s path could shift as it moves across the Gulf of Mexico. The cone is a probable path and does not reflect the storm’s size.
National Hurricane Center

So, what exactly is rapid intensification, and what does global climate change have to do with it? We research hurricane behavior and teach meteorology. Here’s what you need to know.

What is rapid intensification?

Rapid intensification is defined by the National Weather Service as an increase in a tropical cyclone’s maximum sustained wind speed of at least 30 knots – about 35 mph within a 24-hour period. That increase can be enough to escalate a storm from Category 1 to Category 3 on the Saffir-Simpson scale.

Milton’s wind speed went from 80 mph to 175 mph from 1 p.m. Sunday to 1 p.m. Monday, and its pressure dropped from 988 millibars to 911.

The National Hurricane Center had been warning that Milton was likely to become a major hurricane, but this kind of rapid intensification can catch people off guard, especially when it occurs close to landfall.

Hurricane Michael did billions of dollars in damage in 2018 when it rapidly intensified into a Category 5 storm just before hitting near Tyndall Air Force Base in the Florida Panhandle. In 2023, Hurricane Otis’ maximum wind speed increased by 100 mph in less than 24 hours before it hit Acapulco, Mexico. Hurricane Ian also rapidly intensified in 2022 before hitting just south of where Milton is projected to cross Florida.

What causes hurricanes to rapidly intensify?

Rapid intensification is difficult to forecast, but there are a few driving forces.

  • Ocean heat: Warm sea surface temperatures, particularly when they extend into deeper layers of warm water, provide the energy necessary for hurricanes to intensify. The deeper the warm water, the more energy a storm can draw upon, enhancing its strength.
A map shows Gulf of Mexico sea surface temperatures.
Sea surface temperatures have been warm in the Gulf of Mexico, where Hurricane Milton was crossing just northwest of the tip of Mexico’s Yucatan Peninsula on Oct. 7, 2024. A temperature of 30 degrees Celsius is equivalent to 86 degrees Fahrenheit.
NOAA
  • Low wind shear: Strong vertical wind shear – a rapid change in wind speed or direction with height – can disrupt a storm’s organization, while low wind shear allows hurricanes to grow more rapidly. In Milton’s case, the atmospheric conditions were particularly conducive to rapid intensification.

  • Moisture: Higher sea surface temperatures and lower salinity increase the amount of moisture available to storms, fueling rapid intensification. Warmer waters provide the heat needed for moisture to evaporate, while lower salinity helps trap that heat near the surface. This allows more sustained heat and moisture to transfer to the storm, driving faster and stronger intensification.

  • Thunderstorm activity: Internal dynamics, such as bursts of intense thunderstorms within a cyclone’s rotation, can reorganize a cyclone’s circulation and lead to rapid increases in strength, even when the other conditions aren’t ideal.

Research has found that globally, a majority of hurricanes Category 3 and above tend to undergo rapid intensification within their lifetimes.

How does global warming influence hurricane strength?

If it seems as though you’ve been hearing about rapid intensification a lot more in recent years, that’s in part because it’s happening more often.

A chart shows rising incidents of rapid intensification of hurricanes
The annual number of tropical cyclones in the Atlantic Ocean that achieved rapid intensification each year between 1980-2023 shows an upward trend.
Climate Central, CC BY-ND

A 2023 study investigating connections between rapid intensification and climate change found an increase in the number of tropical cyclones experiencing rapid intensification over the past four decades. That includes a significant rise in the number of hurricanes that rapidly intensify multiple times during their development. Another analysis comparing trends from 1982 to 2017 with climate model simulations found that natural variability alone could not explain these increases in rapidly intensifying storms, indicating a likely role of human-induced climate change.

How future climate change will affect hurricanes is an active area of research. As global temperatures and oceans continue to warm, however, the frequency of major hurricanes is projected to increase. The extreme hurricanes of recent years, including Beryl in June 2024 and Helene, are already raising alarms about the intensifying impact of warming on tropical cyclone behavior.The Conversation

Zachary Handlos, Atmospheric Science Educator, Georgia Institute of Technology and Ali Sarhadi, Assistant Professor of Atmospheric Science, Georgia Institute of Technology

This article is republished from The Conversation under a Creative Commons license. Read the original article.

]]>
Why Human-Caused Climate Change is coming for the vulnerable Carolinas https://www.juancole.com/2024/10/climate-vulnerable-carolinas.html Mon, 07 Oct 2024 04:02:39 +0000 https://www.juancole.com/?p=220848 By Russ Schumacher, Colorado State University and Kathie Dello, North Carolina State University | –

(The Conversation) – Hurricane Helene caused deadly and destructive flooding when it swept through the Southeast on Sept. 26-29, 2024. Across a broad swath of western North Carolina, where the worst flooding occurred, the amount of rainfall exceeded levels that would be expected on average only once every 1,000 years.

But this wasn’t the first 1,000-year rainstorm in North Carolina this year. In mid-September, an unnamed slow-moving storm produced more than a foot of rainfall closer to the Atlantic coast. This storm inundated areas that had already been drenched by Tropical Storm Debby in August.

As atmospheric scientists and state climatologists, we believe it’s important for the public to understand the risk that extreme events may occur. That’s especially true as climate change alters the conditions that create and feed storms. Here’s how scientists calculate storm probabilities, and why events like a 1,000-year storm can happen much more frequently in some places than that term suggests.

U.S. map with locations of heavy rain events, including a large cluster in the Carolinas.
Sites in the continental United States that experienced 1,000-year 72-hour rainfall events from 2002-2023. No points are shown in the northwestern US because NOAA Atlas 14 has not been available in this region until very recently.
Russ Schumacher, CC BY-ND

Forecasting the future based on the past

Estimates of rainfall return periods – how long it will be, on average, between storms of a given size – come from the U.S. National Oceanic and Atmospheric Administration, the home of the National Weather Service. NOAA publishes these projections in a series of reports called Atlas 14. Architects and engineers use them to design buildings, dams, bridges and other facilities to withstand heavy rainfall.

The estimates use past rainfall data to calculate how frequently rainstorms of various sizes occur at given locations. In places where historical rainfall observations have been collected for decades, it’s possible to calculate the amount of rain that is exceeded, on average, one or two times per year with very high confidence.

Experts then use statistical methods to estimate how frequently larger rain amounts would occur. As the amounts get bigger, the calculations become less precise. But it’s still possible to make reasonable estimates of very rare rain events.

The results are average probabilities that a certain amount of rain will fall in a given location in any given year. If a storm that produces 6 inches (15 centimeters) of rain within 24 hours has a 1% chance of occurring in any year, then we would expect such a storm to happen once in 100 years, so its return period is said to be 100 years. An event with a 0.1% chance of happening in any given year could be expected to occur once in 1,000 years on average, so it is referred to as a 1,000-year event.

It’s not ‘one and done’

The problem with terms like 100-year event or 1,000-year event is that many people hear them and assume they mean another storm of that size shouldn’t occur for another 99 or 999 years. That’s a reasonable conclusion, but it’s incorrect. Each storm is an individual event, so just because one becomes unusually large doesn’t mean that another storm a year later can’t exceed the odds as well.

Imagine you’re rolling a pair of dice. The odds of throwing a pair of sixes is small – just 1 in 36, or slightly less than 3%. But if you roll the dice again, the odds don’t change – they are the same for that roll as the one before.

A more accurate way to communicate storm odds is to think about the annual exceedance probability – the chance that a rainstorm of a given size could occur in any single year. A 1,000-year storm has a 0.1% chance of occurring in any year, and the same probability of occurring again the next year, and the year after.

Since the U.S. is a big country, we should expect to see a bunch of 0.1% probability rainstorms every year. The chance of such a storm occurring at any specific location is extremely low, but the chance of one occurring somewhere becomes quite a bit higher.

Put another way, even if you are unlikely to experience a 1,000-year storm at your location, there likely will be 1,000-year storms somewhere in the country every year.

Different areas see different kinds of storms

In the real world, actual rainstorms aren’t randomly distributed; they are a result of atmospheric processes like thunderstorms and hurricanes, which are produced by local and regional climate patterns. So a map of actual 1,000-year rainstorms would show clusters reflecting hurricanes along the East Coast, atmospheric rivers along the West Coast, and thunderstorm complexes in the Great Plains, where thunderstorm systems form.

Storm types matter because they have different durations. Almost all rare 1-hour extreme rainfall events are associated with thunderstorms, while those that last 48 or 72 hours often are caused by hurricanes or their remnants.

Map of the U.S. Atlantic Coast with hurricane return periods ranging from five to 50 years.
This map shows the return period for hurricanes of any size through 2018. Areas with the highest return periods are coastal North Carolina, South Florida and southeast Louisiana, about every five to seven years. The map does not reflect influences from climate change since 2018.
NOAA

North Carolina and South Carolina, which are frequently affected by hurricanes and tropical storms, have seen numerous extreme rainfall events in recent years. They include record-setting rainstorms in October 2015 in South Carolina; Hurricane Matthew in 2016; Hurricane Florence in 2018; the aforementioned nameless storm in September 2024; and now, Hurricane Helene.

In fact, since 2002, the three U.S. storms that have dropped 1,000-year magnitude rainfall on the largest areas have all hit the Carolinas: the October 2015 storm, Florence and Helene.

Loading the weather dice

Why have so many storms that, historically and statistically, should be exceedingly rare, struck the Carolinas in just a few years? There are two main reasons, which are related.


“Cyclone,” Digital, Dream / Dreamland v3 / Clip2Comic, 2024

First, estimating the probability of rare events requires increasingly large amounts of data. NOAA’s Atlas 14 was last updated for the Carolinas in 2006, and those calculations only used data through 2000.

As more storms occur and more data is collected, the estimates get more robust. Given that reliable rainfall measurements only extend back about 100 years, the true probability of this much rain in the Carolinas may have been underestimated up until now.

Second, these statistics assume the climate isn’t changing, but we know that it is. Especially in regions near the coasts, the frequency of heavy rainfall has increased as a result of human-caused climate change. Warmer air can hold more moisture, and warmer oceans provide that moisture as the fuel for heavy rainfall.

As a result, climate change is making rainstorms that had been extremely rare now somewhat more likely. While the Carolinas may have been especially unlucky in recent years, the dice are also becoming loaded toward heavier rain – a trend that poses major challenges for emergency preparedness and recovery.

NOAA is currently developing Atlas 15, which will update current estimates with more recent data and will incorporate the effects of climate change. The agency also plans to modernize its estimates of a related quantity known as probable maximum precipitation, which is an estimate of the worst-case rainfall that could occur in a location.

Engineers use these estimates to design large critical facilities, such as dams, that can withstand the flood that would occur with the worst-case scenario rainfall at their sites. North Carolina has developed its own version of Atlas 15, due to the pressing need to plan transportation infrastructure to handle more events like Florence and Helene.

These updates will provide information that can be used for better planning and decision-making. Even so, extreme rainfall will still be a major hazard, with significant impacts on many U.S. communities.The Conversation

Russ Schumacher, Professor of Atmospheric Science and Colorado State Climatologist, Colorado State University and Kathie Dello, Director, North Carolina State Climate Office, North Carolina State University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

]]>
The overshoot Myth: you can’t keep burning Fossil Fuels and expect Scientists of the Future to get us back to 1.5°C https://www.juancole.com/2024/08/overshoot-burning-scientists.html Thu, 22 Aug 2024 04:02:46 +0000 https://www.juancole.com/?p=220155 By James Dyke, University of Exeter; Robert Watson, University of East Anglia and Wolfgang Knorr, Lund University | –

The Conversation – Record breaking fossil fuel production, all time high greenhouse gas emissions and extreme temperatures. Like the proverbial frog in the heating pan of water, we refuse to respond to the climate and ecological crisis with any sense of urgency. Under such circumstances, claims from some that global warming can still be limited to no more than 1.5°C take on a surreal quality.

For example, at the start of 2023’s international climate negotiations in Dubai, conference president, Sultan Al Jaber, boldly stated that 1.5°C was his goal and that his presidency would be guided by a “deep sense of urgency” to limit global temperatures to 1.5°C. He made such lofty promises while planning a massive increase in oil and gas production as CEO of the Abu Dhabi National Oil Company.

We should not be surprised to see such behaviour from the head of a fossil fuel company. But Al Jaber is not an outlier. Scratch at the surface of almost any net zero pledge or policy that claims to be aligned with the 1.5°C goal of the landmark 2015 Paris agreement and you will reveal the same sort of reasoning: we can avoid dangerous climate change without actually doing what this demands – which is to rapidly reduce greenhouse gas emissions from industry, transport, energy (70% of total) and food systems (30% of total), while ramping up energy efficiency.

A particularly instructive example is Amazon. In 2019 the company established a 2040 net zero target which was then verified by the UN Science Based Targets initiative (SBTi) which has been leading the charge in getting companies to establish climate targets compatible with the Paris agreement. But over the next four years Amazon’s emissions went up by 40%. Given this dismal performance, the SBTi was forced to act and removed Amazon and over 200 companies from its Corporate Net Zero Standard.

This is also not surprising given that net zero and even the Paris agreement have been built around the perceived need to keep burning fossil fuels, at least in the short term. Not do so would threaten economic growth, given that fossil fuels still supply over 80% of total global energy. The trillions of dollars of fossil fuel assets at risk with rapid decarbonisation have also served as powerful brakes on climate action.

Overshoot

The way to understand this doublethink: that we can avoid dangerous climate change while continuing to burn fossil fuels – is that it relies on the concept of overshoot. The promise is that we can overshoot past any amount of warming, with the deployment of planetary-scale carbon dioxide removal dragging temperatures back down by the end of the century.

This not only cripples any attempt to limit warming to 1.5°C, but risks catastrophic levels of climate change as it locks us in to energy and material-intensive solutions which for the most part exist only on paper.

To argue that we can safely overshoot 1.5°C, or any amount of warming, is saying the quiet bit out loud: we simply don’t care about the increasing amount of suffering and deaths that will be caused while the recovery is worked on.


A key element of overshoot is carbon dioxide removal. This is essentially a time machine – we are told we can turn back the clock of decades of delay by sucking carbon dioxide directly out of the atmosphere. We don’t need rapid decarbonisation now, because in the future we will be able to take back those carbon emissions. If or when that doesn’t work, we are led to believe that even more outlandish geoengineering approaches such as spraying sulphurous compounds into the high atmosphere in an attempt to block out sunlight – which amounts to planetary refrigeration – will save us.

The 2015 Paris agreement was an astonishing accomplishment. The establishment of 1.5°C as being the internationally agreed ceiling for warming was a success for those people and nations most exposed to climate change hazards. We know that every fraction of a degree matters. But at the time, believing warming could really be limited to well below 2°C required a leap of faith when it came to nations and companies putting their shoulder to the wheel of decarbonisation. What has happened instead is that the net zero approach of Paris is becoming detached from reality as it is increasingly relying on science fiction levels of speculative technology.

There is arguably an even bigger problem with the Paris agreement. By framing climate change in terms of temperature, it focuses on the symptoms, not the cause. 1.5°C or any amount of warming is the result of humans changing the energy balance of the climate by increasing the amount of carbon dioxide in the atmosphere. This traps more heat. Changes in the global average temperature is the established way of measuring this increase in heat, but no one experiences this average.

Climate change is dangerous because of weather that affects particular places at particular times. Simply put, this extra heat is making weather more unstable. Unfortunately, having temperature targets makes solar geoengineering seem like a sensible approach because it may lower temperatures. But it does this by not reducing, but increasing our interference in the climate system. Trying to block out the sun in response to increasing carbon emissions is like turning on the air conditioning in response to a house fire.

In 2021 we argued that net zero was a dangerous trap. Three years on and we can see the jaws of this trap beginning to close, with climate policy being increasingly framed in terms of overshoot. The resulting impacts on food and water security, poverty, human health, the destruction of biodiversity and ecosystems will produce intolerable suffering.

The situation demands honesty, and a change of course. If this does not materialise then things are likely to deteriorate, potentially rapidly and in ways that may be impossible to control.

Au revoir Paris

The time has come to accept that climate policy has failed, and that the 2015 landmark Paris agreement is dead. We let it die by pretending that we could both continue to burn fossil fuels and avoid dangerous climate change at the same time. Rather than demand the immediate phase out of fossil fuels, the Paris agreement proposed 22nd-century temperature targets which could be met by balancing the sources and sinks of carbon. Within that ambiguity net zero flourished. And yet apart from the COVID economic shock in 2020, emissions have increased every year since 2015, reaching an all time high in 2023.

Despite there being abundant evidence that climate action makes good economic sense (the cost of inaction vastly exceeds the cost of action), no country strengthened their pledges at the last three COPs (the annual UN international meetings) even though it was clear that the world was on course to sail past 2°C, let alone 1.5°C. The Paris agreement should be producing a 50% reduction in greenhouse gas emissions by 2030, but current policies mean that they are on track to be higher than they are today.

Greenhouse gas emissions continue to rise.
Catazul/Pixabay, CC BY

We do not deny that significant progress has been made with renewable technologies. Rates of deployment of wind and solar have increased each year for the past 22 years and carbon emissions are going down in some of the richest nations, including the UK and the US. But this is not happening fast enough. A central element of the Paris agreement is that richer nations need to lead decarbonisation efforts to give lower income nations more time to transition away from fossil fuels. Despite some claims to the contrary, the global energy transition is not in full swing. In fact, it hasn’t actually begun because the transition demands a reduction in fossil fuel use. Instead it continues to increase year-on-year.

And so policymakers are turning to overshoot in an attempt to claim that they have a plan to avoid dangerous climate change. A central plank of this approach is that the climate system in the future will continue to function as it does today. This is a reckless assumption.

2023’s warning signs

At the start of 2023, Berkeley Earth, NASA, the UK Met Office, and Carbon Brief predicted that 2023 would be slightly warmer than the previous year but unlikely to set any records. Twelve months later and all four organisations concluded that 2023 was by some distance the warmest year ever recorded. In fact, between February 2023 and February 2024 the global average temperature warming exceeded the Paris target of 1.5°C.

The extreme weather events of 2023 give us a glimpse of the suffering that further global warming will produce. A 2024 report from the World Economic Forum concluded that by 2050 climate change may have caused over 14 million deaths and US$12.5 trillion in loss and damages.

Currently we cannot fully explain why global temperatures have been so high for the past 18 months. Changes in dust, soot and other aerosols are important, and there are natural processes such as El Niño that will be having an effect.

But it appears that there is still something missing in our current understanding of how the climate is responding to human impacts. This includes changes in the Earth’s vital natural carbon cycle.

Around half of all the carbon dioxide humans have put into the atmosphere over the whole of human history has gone into “carbon sinks” on land and the oceans. We get this carbon removal “for free”, and without it, warming would be much higher. Carbon dioxide from the air dissolves in the oceans (making them more acidic which threatens marine ecosystems). At the same time, increasing carbon dioxide promotes the growth of plants and trees which locks up carbon in their leaves, roots, trunks.

All climate policies and scenarios assume that these natural carbon sinks will continue to remove tens of billions of tons of carbon from the atmosphere each year. There is evidence that land-based carbon sinks, such as forests, removed significantly less carbon in 2023. If natural sinks begin to fail – something they may well do in a warmer world – then the task of lowering global temperatures becomes even harder. The only credible way of limiting warming to any amount, is to stop putting greenhouse gasses into the atmosphere in the first place.

Science fiction solutions

It’s clear that the commitments countries have made to date as part of the Paris agreement will not keep humanity safe while carbon emissions and temperatures continue to break records. Indeed, proposing to spend trillions of dollars over this century to suck carbon dioxide out of the air, or the myriad other ways to hack the climate is an acknowledgement that the world’s largest polluters are not going to curb the burning of fossil fuels.

Direct Air Capture (DAC), Bio Energy Carbon Capture and Storage (BECCS), enhanced ocean alkalinity, biochar, sulphate aerosol injection, cirrus cloud thinning – the entire wacky races of carbon dioxide removal and geoengineering only makes sense in a world of failed climate policy.

Clouds in the sky.
Is ‘cloud thinning’ really a possibility?
HarmonyCenter/Pixabay, CC BY

Over the following years we are going to see climate impacts increase. Lethal heatwaves are going to become more common. Storms and floods are going to become increasingly destructive. More people are going to be displaced from their homes. National and regional harvests will fail. Vast sums of money will need to be spent on efforts to adapt to climate change, and perhaps even more compensating those who are most affected. We are expected to believe that while all this and more unfolds, new technologies that will directly modify the Earth’s atmosphere and energy balance will be successfully deployed.

What’s more, some of these technologies may need to operate for three hundred years in order for the consequences of overshoot to be avoided. Rather than quickly slow down carbon polluting activities and increasing the chances that the Earth system will recover, we are instead going all in on net zero and overshoot in an increasingly desperate hope that untested science fiction solutions will save us from climate breakdown.

We can see the cliff edge rapidly approaching. Rather than slam on the brakes, some people are instead pushing their foot down harder on the accelerator. Their justification for this insanity is that we need to go faster in order to be able to make the jump and land safely on the other side.

We believe that many who advocate for carbon dioxide removal and geoengineering do so in good faith. But they include proposals to refreeze the Arctic by pumping up sea water onto ice sheets to form new layers of ice and snow. These are interesting ideas to research, but there is very little evidence this will have any effect on the Arctic let alone global climate. These are the sorts of knots that people tie themselves up in when they acknowledge the failure of climate policy, but refuse to challenge the fundamental forces behind such failure. They are unwittingly slowing down the only effective action of rapidly phasing out fossil fuels.

That’s because proposals to remove carbon dioxide from the air or geoengineer the climate promise a recovery from overshoot, a recovery that will be delivered by innovation, driven by growth. That this growth is powered by the same fossil fuels that are causing the problem in the first place doesn’t feature in their analysis.

The bottom line here is that the climate system is utterly indifferent to our pledges and promises. It doesn’t care about economic growth. And if we carry on burning fossil fuels then it will not stop changing until the energy balance is restored. By which time millions of people could be dead, with many more facing intolerable suffering.

Major climate tipping points

Even if we assume that carbon removal and even geoengineering technologies can be deployed in time, there is a very large problem with the plan to overshoot 1.5°C and then lower temperatures later: tipping points.

The science of tipping points is rapidly advancing. Late last year one of us (James Dyke) along with over 200 academics from around the world was involved in the production of the Global Tipping Points Report. This was a review of the latest science about where tipping points in the climate system may be, as well as exploring how social systems can undertake rapid change (in the direction that we want) thereby producing positive tipping points. Within the report’s 350 pages is abundant evidence that the overshoot approach is an extraordinarily dangerous gamble with the future of humanity. Some tipping points have the potential to cause global havoc.

The melt of permafrost could release billions of tons of greenhouse gasses into the atmosphere and supercharge human-caused climate change. Fortunately, this seems unlikely under the current warming. Unfortunately, the chance that ocean currents in the North Atlantic could collapse may be much higher than previously thought. If that were to materialise, weather systems across the world, but in particular in Europe and North America, would be thrown into chaos. Beyond 1.5°C, warm water coral reefs are heading towards annihilation. The latest science concludes that by 2°C global reefs would be reduced by 99%. The devastating bleaching event unfolding across the Great Barrier Reef follows multiple mass mortality events. To say we are witnessing one of the world’s greatest biological wonders die is insufficient. We are knowingly killing it.

We may have even already passed some major climate tipping points. The Earth has two great ice sheets, Antarctica, and Greenland. Both are disappearing as a consequence of climate change. Between 2016 and 2020, the Greenland ice sheet lost on average 372 billion tons of ice a year. The current best assessment of when a tipping point could be reached for the Greenland ice sheet is around 1.5°C.

This does not mean that the Greenland ice sheet will suddenly collapse if warming exceeds that level. There is so much ice (some 2,800 trillion tons) that it would take centuries for all of it to melt over which time sea levels would rise seven metres. If global temperatures could be brought back down after a tipping point, then maybe the ice sheet could be stabilised. We just cannot say with any certainty that such a recovery would be possible. While we struggle with the science, 30 million tons of ice is melting across Greenland every hour on average.

Melting ice flows.
Ice sheets in Greenland and Antarctica are being affected by global warming.
Pexels from Pixabay, CC BY

The take home message from research on these and other tipping points is that further warming accelerates us towards catastrophe. Important science, but is anyone listening?

It’s five minutes to midnight…again

We know we must urgently act on climate change because we are repeatedly told that time is running out. In 2015, Professor Jeffrey Sachs, the UN special adviser and director of The Earth Institute, declared:

The time has finally arrived – we’ve been talking about these six months for many years but we’re now here. This is certainly our generation’s best chance to get on track.

In 2019 (then) Prince Charles gave a speech in which he said: “I am firmly of the view that the next 18 months will decide our ability to keep climate change to survivable levels and to restore nature to the equilibrium we need for our survival.”

“We have six months to save the planet,” exhorted International Energy Agency head Fatih Birol – one year later in 2020. In April 2024, Simon Stiell, executive secretary of the United Nations Framework Convention on Climate Change said the next two years are “essential in saving our planet”.

Either the climate crisis has a very fortunate feature that allows the countdown to catastrophe to be continually reset, or we are deluding ourselves with endless declarations that time has not quite run out. If you can repeatedly hit snooze on your alarm clock and roll over back to sleep, then your alarm clock is not working.

Or there is another possibility. Stressing that we have very little time to act is intended to focus attention on climate negotiations. It’s part of a wider attempt to not just wake people up to the impending crisis, but generate effective action. This is sometimes used to explain how the 1.5°C threshold of warming came to be agreed. Rather than a specific target, it should be understood as a stretch goal. We may very well fail, but in reaching for it we move much faster than we would have done with a higher target, such as 2°C. For example, consider this statement made in 2018:

Stretching the goal to 1.5 degrees celsius isn’t simply about speeding up. Rather, something else must happen and society needs to find another lever to pull on a global scale.

What could this lever be? New thinking about economics that goes beyond GDP? Serious consideration of how rich industrialised nations could financially and materially help poorer nations to leapfrog fossil fuel infrastructure? Participatory democracy approaches that could help birth the radical new politics needed for the restructuring of our fossil fuel powered societies? None of these.

The lever in question is Carbon Capture and Storage (CCS) because the above quote comes from an article written by Shell in 2018. In this advertorial Shell argues that we will need fossil fuels for many decades to come. CCS allows the promise that we can continue to burn fossil fuels and avoid carbon dioxide pollution by trapping the gas before it leaves the chimney. Back in 2018, Shell was promoting its carbon removal and offsets heavy Sky Scenario, an approach described as “a dangerous fantasy” by leading climate change academics as it assumed massive carbon emissions could be offset by tree planting.

Since then Shell has further funded carbon removal research within UK universities presumably in efforts to burnish its arguments that it must be able to continue to extract vast amounts of oil and gas.

Shell is far from alone in waving carbon capture magic wands. Exxon is making great claims for CCS as a way to produce net zero hydrogen from fossil gas – claims that have been subject to pointed criticism from academics with recent reporting exposing industry wide greenwashing around CCS.

But the rot goes much deeper. All climate policy scenarios that propose to limit warming to near 1.5°C rely on the largely unproven technologies of CCS and BECCS. BECCS sounds like a good idea in theory. Rather than burn coal in a power station, burn biomass such as wood chips. This would initially be a carbon neutral way of generating electricity if you grew as many trees as you cut down and burnt. If you then add scrubbers to the power station chimneys to capture the carbon dioxide, and then bury that carbon deep underground, then you would be able to generate power at the same time as reducing concentrations of carbon dioxide in the atmosphere.

Unfortunately, there is now clear evidence that in practice, large-scale BECCS would have very adverse effects on biodiversity, and food and water security given the large amounts of land that would be given over to fast growing monoculture tree plantations. The burning of biomass may even be increasing carbon dioxide emissions. Drax, the UK’s largest biomass power station now produces four times as much carbon dioxide as the UK’s largest coal-fired power station.

Five minutes to midnight messages may be motivated to try to galvanise action, to stress the urgency of the situation and that we still (just) have time. But time for what? Climate policy only ever offers gradual change, certainly nothing that would threaten economic growth, or the redistribution of wealth and resources.

Despite the mounting evidence that globalised, industrialised capitalism is propelling humanity towards disaster, five minutes to midnight does not allow time and space to seriously consider alternatives. Instead, the solutions on offer are techno fixes that prop up the status quo and insists that fossil fuel companies such as Shell must be part of the solution.

That is not to say there are no good faith arguments for 1.5°C. But being well motivated does not alter reality. And the reality is that warming will soon pass 1.5°C, and that the Paris agreement has failed. In the light of that, repeatedly asking people to not give up hope, that we can avoid a now unavoidable outcome risks becoming counterproductive. Because if you insist on the impossible (burning fossil fuels and avoiding dangerous climate change), then you must invoke miracles. And there is an entire fossil fuel industry quite desperate to sell such miracles in the form of CCS.

Four suggestions

Humanity has enough problems right now, what we need are solutions. This is the response we sometimes get when we argue that there are fundamental problems with the net zero concept and the Paris agreement. It can be summed up with the simple question: so what’s your suggestion? Below we offer four.

1. Leave fossil fuels in the ground

The unavoidable reality is that we need to rapidly stop burning fossil fuels. The only way we can be sure of that is by leaving them in the ground. We have to stop exploring for new fossil fuel reserves and the exploitation of existing ones. That could be done by stopping fossil fuel financing.

At the same time we must transform the food system, especially the livestock sector, given that it is responsible for nearly two thirds of agricultural emissions. Start there and then work out how best the goods and services of economies can be distributed. Let’s have arguments about that based on reality not wishful thinking.

2. Ditch net zero crystal ball gazing targets

The entire framing of mid and end-century net zero targets should be binned. We are already in the danger zone. The situation demands immediate action, not promises of balancing carbon budgets decades into the future. The SBTi should focus on near-term emissions reductions. By 2030, global emissions need to be half of what they are today for any chance of limiting warming to no more than 2°C.

It is the responsibility of those who hold most power – politicians and business leaders – to act now. To that end we must demand twin targets – all net zero plans should include a separate target for actual reductions in greenhouse gas emissions. We must stop hiding inaction behind promises of future removals. It’s our children and future generations that will need to pay back the overshoot debt.

3. Base policy on credible science and engineering

All climate policies must be based on what can be done in the real world now, or in the very near future. If it is established that a credible amount of carbon can be removed by a proposed approach – which includes capture and its safe permanent storage – then and only then can this be included in net zero plans. The same applies to solar geoengineering.

Speculative technologies must be removed from all policies, pledges and scenarios until we are sure of how they will work, how they will be monitored, reported and validated, and what they will do to not just the climate but the Earth system as a whole. This would probably require a very large increase in research. As academics we like doing research. But academics need to be wary that concluding “needs more research” is not interpreted as “with a bit more funding this could work”.

4. Get real

Finally, around the world there are thousands of groups, projects, initiatives, and collectives that are working towards climate justice. But while there is a Climate Majority Project, and a Climate Reality Project, there is no Climate Honesty Project (although People Get Real does come close). In 2018 Extinction Rebellion was formed and demanded that governments tell the truth about the climate crisis and act accordingly. We can now see that when politicians were making their net zero promises they were also crossing their fingers behind their backs.

We need to acknowledge that net zero and now overshoot are becoming used to argue that nothing fundamental needs to change in our energy intensive societies. We must be honest about our current situation, and where we are heading. Difficult truths need to be told. This includes highlighting the vast inequalities of wealth, carbon emissions, and vulnerability to climate change.

The time for action is now

We rightly blame politicians for failing to act. But in some respects we get the politicians we deserve. Most people, even those that care about climate change, continue to demand cheap energy and food, and a constant supply of consumer products. Reducing demand by just making things more expensive risks plunging people into food and energy poverty and so policies to reduce emissions from consumption need to go beyond market-based approaches. The cost of living crisis is not separate from the climate and ecological crisis. They demand that we radically rethink how our economies and societies function, and whose interests they serve.

To return to the boiling frog predicament at the start, it’s high time for us to jump out of the pot. You have to wonder why we did not start decades ago. It’s here that the analogy offers valuable insights into net zero and the Paris agreement. Because the boiling frog story as typically told misses out a crucial fact. Regular frogs are not stupid. While they will happily sit in slowly warming water, they will attempt to escape once it becomes uncomfortable. The parable as told today is based on experiments at the end of the 19th century that involved frogs that had been “pithed” – a metal rod had been inserted into their skulls that destroyed their higher brain functioning. These radically lobotomised frogs would indeed float inert in water that was cooking them alive.

Promises of net zero and recovery from overshoot are keeping us from struggling to safety. They assure us nothing too drastic needs to happen just yet. Be patient, relax. Meanwhile the planet burns and we see any sort of sustainable future go up in smoke.

Owning up to the failures of climate change policy doesn’t mean giving up. It means accepting the consequences of getting things wrong, and not making the same mistakes. We must plan routes to safe and just futures from where we are, rather where we would wish to be. The time has come to leap.


For you: more from our Insights series:

To hear about new Insights articles, join the hundreds of thousands of people who value The Conversation’s evidence-based news. Subscribe to our newsletter.The Conversation

James Dyke, Associate Professor in Earth System Science, University of Exeter; Robert Watson, Emeritus Professor in Environmental Sciences, University of East Anglia, and Wolfgang Knorr, Senior Research Scientist, Physical Geography and Ecosystem Science, Lund University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Feature image: Pixabay.

]]>
How Exporting Fossil Fuels undermines Climate Targets https://www.juancole.com/2024/08/exporting-undermines-climate.html Sat, 17 Aug 2024 04:02:45 +0000 https://www.juancole.com/?p=220009 By Bill Hare, Murdoch University | –

(The Conversation) – Australia is one of the world’s largest exporters of fossil fuels. While this coal and gas is burned beyond our borders, the climate-warming carbon dioxide (CO₂) emissions affect us all.

My colleagues and I at global research and policy institute Climate Analytics were commissioned to find out just how big Australia’s carbon footprint really is. Our detailed analysis of the nation’s fossil fuel exports and associated emissions is the most comprehensive to date. The report, released today, clearly shows Australia plays a major role in climate change.

We found Australia is the world’s third-largest fossil fuel exporter, after Russia and the United States. But it gets worse when the fuel is used. Australia exports so much coal that our nation is the second-largest exporter of fossil fuel CO₂ emissions.

Unfortunately, just when we need to be cutting emissions, Australia is doubling down on fossil gas extraction mainly for LNG production and export. Federal government policies enabling and/or promoting continued high fossil fuel exports threaten to sabotage international efforts to limit global warming.

Australia’s fossil fuel carbon footprint

Australia’s contribution to global warming can only be understood by considering its fossil fuel exports alongside its domestic emissions.

Our research found Australia’s coal and gas exports were responsible for 1.15 billion tonnes of CO₂ emissions in 2023. An additional 46 million tonnes of CO₂ were emitted domestically in the process of extracting, processing and distributing those fossil fuels purely for export. That takes the total to 1.2 billion tonnes of CO₂ attributable to fossil fuel exports.

In other words, Australia’s global fossil fuel carbon footprint is three times larger than its domestic footprint. Around 80% of the damage is done overseas.

The International Energy Agency has clearly said there should be no new fossil fuel development if the world is to limit warming to 1.5°C – the Paris Agreement’s temperature goal. Yet Australia continues to approve new fossil fuel exploration and production.

Overall, exports of Australian fossil fuels – and hence fossil fuel CO₂ emissions – are expected to continue at close to current levels through to 2035, under current government policies.



Thermal coal exports, which are burned mainly for electricity production, are expected to slightly decline by 2035 from their all-time high in 2023. But exports of metallurgical coal, used in steel-making, and LNG are expected to stay about the same in 2035 as they are today.

Blowing the carbon budget

Between 2023 and 2035, Australia’s fossil fuel exports alone would consume around 7.5% of the world’s estimated remaining global carbon budget of about 200 billion tonnes of CO₂. This is the amount of CO₂ that could still be emitted from 2024 onwards if we are to limit peak warming to 1.5°C with 50% probability.

But rather than decreasing, CO₂ emissions from Australia’s fossil fuel exports are set to increase under current government policies. In other words, in the next 11 years, by 2035, exported fossil fuel CO₂ emissions will exceed by 50% that of the entire 63 year period from 1961 to 2023.

If we include domestic CO₂ emissions from current policies, this means by 2035 Australia, with 0.3% of the world’s population, would consume 9% of the total remaining carbon budget.

Undermining the Paris Agreement

In December, at the COP28 international climate conference in Dubai, governments including Australia agreed on the first “global stocktake” of greenhouse gas emissions. It called for:

transitioning away from fossil fuels in energy systems in a just, orderly and equitable manner, accelerating action in this critical decade, so as to achieve net zero by 2050 in keeping with the science.

The stocktake also called on all countries to align their nationally determined contributions with the 1.5°C limit.

Energy Minister Chris Bowen’s response at the time was to call for Australia to be a “renewable energy superpower”. But his government appears to believe this includes embracing a gas export strategy.

Current government policy is not aligned with Paris Agreement’s 1.5°C limit. Our new report shows the government’s focus on maintaining high levels of fossil fuel exports is completely inconsistent with reducing global CO2 emissions to levels compatible with the 1.5°C goal.

Australia mainly exports fossil fuels to Japan, China, South Korea and India. These countries, which accounted for about 43% of fossil fuel CO₂ emissions in 2022, are also signatories to the Paris Agreement. So they have set 2030 emissions reduction targets and net-zero goals of their own. Continuing to import fossil fuels is incompatible with their own commitments.

Japan’s LNG imports fell 8% in 2023 to their lowest levels since 2009 and are expected to drop by a further 25% by 2030. Given the current energy security and LNG debate, it should be noted Japanese companies on-sold more LNG in 2020–22 than they purchased from Australia.

Thwarting national emissions reduction efforts

Australia’s planned expansion of fossil fuels, notably its gas exports, will add to the country’s domestic emissions and make it harder for it to meet even its own domestic target. That’s because a sizeable chunk of domestic fossil fuel CO₂ emissions (7.5%) comes from processing gas for export.



Our analysis also shows Australia’s plans are completely inconsistent with the global stocktake’s call for a transition away from fossil fuels. The government and gas industry’s arguments that more fossil gas is needed to get to net zero are also at odds with the science.

Time for a fossil fuel phase-out

Australia has a massive interest in the world as a whole decarbonising fast enough to limit warming to 1.5°C.

For example, children born in Australia today face much more extreme heat, floods and other disasters during their lifetimes than previous generations. This exposure can be very substantially reduced by limiting warming to 1.5°C. The choices Australia, as a major fossil fuel exporter, makes now in this critical decade will determine what happens to them.

By failing to initiate an orderly phase-out of fossil fuel exports, Australia also risks undermining its own stated ambition of becoming a renewable energy superpower.

It is in our nation’s interests to develop and implement an orderly exit – just as we are doing for our domestic emissions – working cooperatively with affected communities and overseas buyers. Doing anything less will only hurt us in the end.The Conversation

Bill Hare, Adjunct Professor of Energy, Murdoch University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

—-

Bonus Video added by Informed Comment:

Australian Broadcast Corp Video: “Owners of NSW’s biggest coal mine have applied to extend the life of the site by 25 years”

]]>
“Some Say the World will End in Fire:” Nukes and Carbon, Carbon and Nukes https://www.juancole.com/2024/07/world-nukes-carbon.html Mon, 01 Jul 2024 04:02:05 +0000 https://www.juancole.com/?p=219328 ( Tomdispatch.com ) – I’ve been writing about climate change for so many years now but, in truth, it was always something I read about and took in globally. It was happening out there, often in horrific ways, but not what I felt I was living through myself. (It’s true that, in past winters, Manhattan’s Central Park went 653 days without producing an inch of snow, almost double any previous record, but if you’re not a kid with a sled in the closet, that’s the sort of thing you don’t really feel.)

However, that’s begun to change. As it happens, like so many other New Yorkers, I only recently experienced a June heat dome over my city. Here in Manhattan, where I walk many miles daily for exercise, it was simply brutal. The sort of thing you might expect in a truly bad week in August.

This June, though, it was hot nationally almost beyond imagining. As I began this piece, it was estimated that more than 270 million Americans, 80% of us, were experiencing a heatwave of a potentially unprecedented sort extending over significant parts of the country. There were devastating early wildfires in the Southwest and West (not to speak of the ones burning long-term in Canada). Ruidoso, a small mountain town in New Mexico that my wife, who grew up in El Paso, Texas, once loved, had at least 1,400 of its structures damaged or destroyed by fire and two people killed.

Meanwhile, as I began writing this, the first tropical storm of this overheated season was already forming in the Gulf of Mexico and heading for Texas, not to speak of those record rainstorms that only recently flooded the Ft. Lauderdale and Miami areas in a distinctly unsettling fashion. And then, of course, there was the National Oceanic and Atmospheric Administration’s prediction that, given how hot the tropical waters of the Atlantic Ocean had become, this year’s hurricane season could prove to be an all-too-literal hell on Earth. There might possibly be 25 named storms (itself a record prediction). And I was thinking about all of this as I sat at my desk in New York City, stripped to my undershirt in the rising heat of a June day from hell. 

Honestly, it’s not that complicated. In fact, we should give ourselves credit. We humans have certainly proved to be remarkable — or at least remarkably destructive. Yes, we’ve long been that way, but the levels of that destructiveness have, in recent history, grown in a striking fashion. If you feel in a negative enough mood, humanity’s time on this planet can be seen as a history of ever more horrific wars that, in the last century, became global. And, of course, the second of those world wars ended in an historically unprecedented fashion with the destruction of the Japanese cities of Hiroshima and Nagasaki by a new weapon, the atom bomb, that all too soon proved capable not just of devastating urban areas but of possibly wiping out civilization itself. And that, in a sense, couldn’t be more deeply us. (There are, of course, other histories that could also be written that would be far more encouraging, including a history of literature and of healing, but at least for now let’s leave them aside.)

I mean, give us full credit. In these decades, we’ve discovered — once by the deepest sort of planning and experimentation (think “Trinity,” the code name for the first nuclear test in the desert of Los Alamos, New Mexico, that Robert J. Oppenheimer became so famous for) and then by the inadvertent, if deeply profitable use of fossil fuels — two ways of potentially destroying Earth, at least as a livable place for you-know-who. I’m talking, of course, about the very planet that nurtured humanity for endless millennia.

Nuclear war between great (or even lesser) powers could, of course, quickly produce an apocalyptic scenario that might kill millions of human beings and create a nuclear winter on planet Earth capable of starving most of the rest of us. Climate change, while potentially no less destructive, offers us that apocalypse in slow motion. And that’s obviously why it’s taken me so long, despite all that I’ve written on the subject, to truly feel it myself in broiling Manhattan.

Death by Heat

Oh, and as I sat there sweating profusely in front of my computer on that overheated day, I was struck by a little cheery news when it comes to doing in the planet. As the Guardian recently reported, nuclear spending actually rose globally by 13% in 2023. How farsighted of us!

Congratulations are certainly in order, don’t you think? And to give credit where it’s due, among the nine nuclear powers on this planet, my own country leads the list in increased spending, pouring more billions of dollars into such weaponry than the next eight nuclear powers combined. And mind you, at this very second, two of the planet’s nine nuclear powers, Russia and Israel, are actually at war. While one, Israel, doesn’t mention its nuclear arsenal, the other has repeatedly threatened to use “tactical” nuclear weapons (some more powerful than the ones that destroyed Hiroshima and Nagasaki) in Ukraine or even assumedly elsewhere in Europe.

A third nuclear power, North Korea, has been implicitly threatening to atomize its southern neighbor and foe. Oh, and just for a little even cheerier news, Russian President Vladimir Putin now needs North Korean weaponry so badly to fight his war in Ukraine that he may be willing to aid Kim Jong-un’s scientists in designing “a warhead that could survive re-entry into the atmosphere and threaten its many adversaries, starting with the United States.” So, at the moment, if anything, the possibilities of future nuclear war seem to be on the rise.

Meanwhile, in this planet’s slow-motion version of Armageddon, while we Americans have been experiencing our own extreme weather events from coast to coast, so have other countries, sometimes in an even more devastating fashion. Take Greece, part of a Europe that experienced extreme heat last summer. Only recently, it’s had an early heatwave that scientists say could “go down in history” (at least until next year!) in which at least five tourists have died. And that, in truth, was nothing, not if you shift your focus to Saudi Arabia. There, during this year’s Hajj religious pilgrimage in which 1.8 million well-robed visitors took part, more than 1,300 pilgrims died of heat exposure as the temperature hit 125 degrees Fahrenheit. Meanwhile, South Asia has been broiling, with temperatures there all too literally going sky high — up to 127 degrees Fahrenheit in India and Pakistan — and resulting in increasing numbers of deaths. In India, only perhaps 12% of the population even has air conditioning (which, in any case, simply puts more fossil fuels into the atmosphere). Scores of people have died there from extreme temperatures, including dozens of poll workers during India’s recent election.

Such extremes are becoming a global phenomenon, as is ever wilder weather. Take, for instance, recent record temperatures and a grim drought across significant parts of northern China along with record flooding in the southern part of that country. And mind you, China has done more than any other nation to switch to non-fossil-fuel-producing renewable forms of energy and yet, in 2023, it was also continuing to build new coal-powered plants at a rate of two per week.

Whether cheaper solar and wind energy, which are indeed growing faster than any energy source ever, will leave oil, coal, and natural gas in a historic ditch remains to be seen. In the meantime, our planet is a growing climate mess, with (let’s not forget) us humans continuing to make war on each other in Ukraine and Gaza, efforts that only pour yet more fossil fuels into the atmosphere.   

A Slow-Motion Conflagration

This is just the start of a process of climate devastation that, barring surprises, is scheduled to grow ever more severe in the years to come. And if you want to look for a moment at causation (as with nuclear spending), rather than the death-dealing results of it all, consider my country. It’s still setting startling records when it comes to the production of fossil fuels. In fact, in 2023, for the sixth year in a row, the United States set a global record for oil production (an average of 12.9 million barrels a day) and it’s also now the largest exporter of natural gas on the planet.

Meanwhile, the major fossil-fuel companies and their CEOs continue to make absolute fortunes. As the CEO of Chevron put it last year: “In 2023, we returned more cash to shareholders and produced more oil and natural gas than any year in the company’s history.” Hooray! And think of all of that as possibly the ultimate form of warfare on planet Earth. Consider it, in fact, a slo-mo version of atomic war, even if no one normally talks about fossil-fuelized war or anything of the sort.

Those mind-boggling American records took place under a president who has at least attempted to curb climate change. And yet, keep in mind that my fellow citizens, sweating across the country right now, could elect a man in 2024 who has sworn to wipe out our modest steps towards a greener future on the very first day he gets back into the Oval Office (and essentially ignored a question about climate change during the debate Thursday without being seriously challenged for doing so). He’s proudly met with just about every fossil fuel CEO in sight, promising to “end a freeze on permits for new liquefied natural gas,” reverse any steps President Biden took to limit fossil-fuel usage, and is even more proudly ready, as he’s bragged more than once, to “drill, baby, drill” from his first day in office. Meanwhile, of course, many of the countries of Europe, which until now have moved more decisively against the use of fossil fuels, just elected all too many far-right representatives to the European Parliament and may do the same thing in state-by-state elections, and so, as in this country, could reverse course on climate change.

Imagine this then: next June, if I’m still writing TomDispatch pieces, it may be without even that undershirt on. (Excuse me for a moment, while I wipe the sweat from my face.)

The future, as they say, is now and, believe me, I feel it. Right now! (And I don’t often use exclamation points.) And yet, in the slow-motion apocalypse that climate change represents, the one that’s already starting to slaughter human beings before it even truly hits its stride, this is clearly just the beginning, perhaps — though we don’t yet know — just the beginning of the beginning.

It saddens me beyond words to imagine the future world my grandchildren might find themselves in. It’s true that we should never underestimate ourselves — and not just when it comes to destruction. The switch to non-fossil-fuel forms of energy is distinctly on the rise and they are indeed becoming ever less expensive to install and use. And you never know — you truly don’t — what else the human brain can come up with. Nor, of course, do we know whether, in the grimmest fashion imaginable, we could end all this slow-motion suffering on planet Earth in a nuclear conflagration.

Given our history, who knows what we could do? And I haven’t even mentioned artificial intelligence, have I? I fear I may simply be too old to take all of this in or the ways in which we humans could still prove destructive beyond compare.

Via Tomdispatch.com

]]>
Forests may not benefit from extra CO2, spelling further Danger of Global Heating https://www.juancole.com/2024/06/forests-benefit-spelling.html Mon, 10 Jun 2024 04:02:22 +0000 https://www.juancole.com/?p=218977 By Kristine Crous, Western Sydney University; Belinda Medlyn, Western Sydney University; and David S Ellsworth, Western Sydney University |

(The Conversation) – As humanity continues to burn fossil fuels, the delicate balance of life on Earth is changing. That’s true of trees, many of which are growing faster as a result of increased carbon dioxide (CO₂) concentrations in our atmosphere.

But not all trees are responding in this way. In particular, eucalypts – Australia’s iconic forest trees – haven’t benefited from the increase in CO₂ as they were expected to.

Why not? Our new research, published today in Nature, shows it comes down to a below-ground battle for phosphorus, a mineral nutrient in soils that is essential for tree growth. The results suggest in some parts of the world, increased CO₂ means tiny bugs in the soil “hold onto” their phosphorus, making less available for trees.

This is alarming news, because according to current projections, global forest growth is meant to limit damage from global warming.

What our study involved

Our study used data from a Western Sydney University experiment known as “Eucalyptus Free Air CO₂ Enrichment”, or EucFACE. The experiment is located in a century-old Cumberland plain woodland in Sydney’s Hawkesbury district.

CO₂ is released into the woodland through a computer‐controlled system. Scientists then monitor the effects on trees, soils and the broader ecosystem. Over six years, CO₂ was raised to the levels expected around the year 2050 (according to the current business-as-usual emissions trajectory).

Our previous studies found the woodland trees did not show any extra growth at high CO₂ levels. We suspected the low availability of soil phosphorus was the cause, and set out to test this.

Phosphorus is crucial to the process of photosynthesis that makes trees grow. Phosphorus in soil is provided by bugs known as microbes. These micro-organisms break down dead and decaying matter, and in the process change phosphorus into a form that plants can take up with their roots.

Most Australian soils are naturally low in phosphorus, because they are derived from ancient, nutrient-depleted rocks. The same is true for most soils in tropical and subtropical regions. That makes the phosphorus service provided by microbes even more important.

We sampled phosphorus in all parts of the ecosystem, tracing its journey from the soil to the trees. We found under high-CO₂ conditions the microbes keep more of the phosphorus they produce, to aid their own metabolism. This left less available for trees to take up.

This occurred despite the trees trying to “bargain” for phosphorus by releasing extra carbon into the soil to feed the microbes.


Image by Hans from Pixabay

What’s more, trees are big “recyclers” of phosphorus – they remove half of the phosphorus from any leaf before it falls. But this was still not enough to support extra tree growth.

Why this matters

Our study is the first to show how the phosphorus cycle is affected by high CO₂ – and in particular, the role of soil microbes.

The results are important to predicting soil phosphorus availability, and plant productivity, in woodlands and forests as CO₂ levels increase in the atmosphere.

Current climate projections assume increasing CO₂ will lead to more forest growth globally. Forests are a vital carbon “sink” – that is, they draw down carbon from the atmosphere. So the increased forest growth was projected to go some way to limiting the effects of climate change.

If our results are taken into account, future warming would be higher than current projections. However, it’s important to verify our results in other locations, with other tree species. New experiments are being formed by overseas teams, including in the Amazon rainforest, to test the findings.

Importantly, our results don’t mean that forests are not a crucial sink for carbon. Forests hold a vast quantity of carbon. Avoiding deforestation and planting new forests are both valuable means of maintaining and adding to carbon stores.

Our research demonstrates the importance of considering soils when growing trees. We also hope our research stimulates further efforts to find phosphorus in ecosystems, especially in tropical rainforests where phosphorus is often greatly limited.The Conversation

Kristine Crous, Senior Lecturer, Hawkesbury Institute for the Environment, Western Sydney University; Belinda Medlyn, Distinguished Professor, Ecosystem Function and Integration, Western Sydney University, and David S Ellsworth, Professor of Plant Eco-physiology, Western Sydney University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

]]>
The Enemy is Us: (And I’m not just thinking about Donald Trump) https://www.juancole.com/2024/06/enemy-thinking-donald.html Thu, 06 Jun 2024 04:06:37 +0000 https://www.juancole.com/?p=218931 ( Tomdispatch.com) – Honestly, doesn’t it befuddle you?

I mean, don’t you think we humans are kinda mad? And worse yet, at some deep level, we simply can’t seem to stop. All too often, we just can’t curb our urge to destroy.

Looking back, the desire to make war and obliterate our “enemies” is a deeply ingrained and repetitive pattern in our history. Each individual example can, of course, be explained (away) in its own fashion, but the overall pattern? Hmmm…

I mean, you can certainly “understand” the Russian invasion of Ukraine. Depending on your politics, you can explain it in terms of the threatening expansion of NATO or of a country run by an autocrat willing to see countless numbers of his people die (no, I’m not even thinking about the tens of thousands of dead Ukrainians) in order to take more territory — whether in parts of Georgia (no, not that Georgia!), Ukraine, or god knows where else — and make himself ever more impressively (or do I mean depressively?) imperial. Phew! That was a long one, but explanations about war-making tend to be that way.

And yes, if you want, you also can undoubtedly explain the ongoing nightmare in Gaza, beginning with Hamas’s horrific October 7th attack on Israel and followed by the outrageous urge of Prime Minister Benjamin Netanyahu and his disturbingly right-wing compatriots to slaughter the population of that strip of land right down to the smallest child. In some grim fashion, given our history, such acts seem all too sadly human.

You could also undoubtedly offer explanations for the endless — yes, that’s a reasonable word to use here! — not to speak of disastrous wars my own country has stomped into since World War II ended, first as the leader of the “free world” and then as the leader of who knows what. Those conflicts ranged from Korea in the 1950s and Vietnam, Laos, and Cambodia in the 1960s and 1970s to Afghanistan and Iraq, among other places, in this century. And undoubtedly it’s even possible to explain (away) the nightmarish civil war still devastating Sudan that’s already displaced more than eight million people without being noticed by much of the rest of the world.

Something New in the Planetary Bloodstream

In a sense, war is human history. It’s been the rare moment when we’ve proven capable of not making war on ourselves somewhere on this planet. It seems to be in the bloodstream, so to speak (as in the endless streams, even rivers, of blood eternally being spilled). And in a sense, war, the urge to take someone else’s territory or simply kill endless numbers of… well, us… has certainly been in that very same bloodstream at least since the first great literary work of the Western world, The Iliad, was written. In some sense, you could say that, 3,000 years later, we’re all still in Troy.

Oh, wait, that’s both true and not, because there is indeed something new in the planetary bloodstream. And I’m not even thinking about our endless ability to find ever “better” and more devastating ways to kill one another — from the spear to the AR-15 semi-automatic rifle (reputedly now owned by one of every 20 Americans), the bow and arrow to the AI-driven drone, the hand grenade to atomic weaponry. (And don’t forget that Vladimir Putin is already threatening to use “tactical” nuclear weapons in Ukraine — never mind that some of them are significantly more powerful than the bombs that, in August 1945, obliterated the Japanese cities of Hiroshima and Nagasaki.)

No, what I have in mind is that other way we humans have found to potentially devastate our world: the burning of fossil fuels. Yes, it started with the massive consumption of coal during the early stages of the Industrial Revolution in the eighteenth and nineteenth centuries, and it’s simply never ended. (China, in fact, now uses more coal than the rest of the world combined and continues to build coal power plants.) By now, with oil and natural gas added to the mix in staggering quantities, records are being set monthly as ever greater heat waves, increasingly violent storms, startling flooding, and devastating fires are becoming part of our everyday lives. Typical was Miami’s May heat index that recently hit an unheard-of 112 degrees Fahrenheit, 11 degrees higher than at any past date in May ever. That should hardly shock us, however, since, as that superb environmentalist Bill McKibben reports, “A new study out today shows that heat waves have tripled since the 1960s in this country, and that deaths from those hot spells are up 800%.” And, of course, far worse is predicted for the decades to come, as those burning fossil fuels continue to pour greenhouse gases into the atmosphere at record rates.

Forget what we officially call wars (anything but easy to do these days if you happen to be Gazan, Sudanese, or Ukrainian) and consider this the increasingly devastating new way we have of warring on ourselves and our planet. While there’s still a lot to learn about global warming, also known as climate change (terms far too mild for what’s actually happening), we already know far too much not to consider it the ultimate danger — other than nuclear war, of course. In fact, the difference between nuclear war and global warming could be that, since August 1945 (except for nuclear tests), such weaponry has never been used again, while the distinctly apocalyptic “weaponry” of climate change is still ratcheting up in a staggering fashion.


Image by Patou Ricard from Pixabay

A War Against the World as We’ve Known It

Climate change is certainly something Americans should know about. After all, only the other week, Donald (“drill, baby, drill“) Trump sat down with a group of fossil-fuel CEOs and reportedly suggested that, for a billion dollars in campaign financing, a bribe of the first order, he would toss out all of Joe Biden’s attempts to rein in the oil, natural gas, and coal industries and encourage them instead to make further fortunes by turning this planet into a cinder. (In truth, that wasn’t really much of an offer, since he had already made it clear that he was planning to do just that anyway, starting on “day one” of his next term in office.)

Of course, who needs Donald Trump when, as the New York Times reported recently, despite President Biden’s distinct attempts to limit the use of fossil fuels during his tenure in the White House, “oil and gas production have set records under the Biden administration and the United States is the world’s leading exporter of liquefied natural gas. Even with the [administration’s] pause on permits for new [natural gas] export terminals, the United States is still on track to nearly double its export capacity by 2027 because of projects already permitted and under construction.” And mind you, we’re talking about the country that, according to the U.S. Energy Information Administration, “produced more crude oil than any nation at any time… for the past six years in a row,” reaching — yes, indeed! — a new record in 2023.

And despite all of what I’ve just described, consider it an irony that the only true world war of the moment (think of it, in fact, as a slow-motion World War III) doesn’t normally get enough headlines (though there are, of course, exceptions) or the attention in the mainstream media that the wars in Gaza and Ukraine so regularly have. No matter that last year was the hottest in human history and that each of the last 11 months was the warmest of its kind on record. Still, if you want to follow what’s functionally our only true world war in the mainstream world, there’s one obvious place to go, the British Guardian, which regularly highlights reporting on the subject and even has an online “climate-crisis” section.

Here, for instance, are just a few of the things you could have learned from that paper’s reporting in the last month or so and tell me they shouldn’t have been headline news everywhere. Take the Guardian‘s Oliver Milman recently writing that “the largest ever recorded leap in the amount of carbon dioxide laden in the world’s atmosphere has just occurred… The global average concentration of carbon dioxide in March this year was 4.7 parts per million (or ppm) higher than it was in March last year, which is a record-breaking increase in CO2 levels over a 12-month period.” Or the staggering heat waves that struck across Asia this spring “causing deaths, water shortages, crop losses and widespread school closures,” as Damian Carrington, that paper’s environment editor, reported. And mind you, such searing temperatures were “made 45 times more likely in India” by the climate crisis.

Do you even remember when not passing 1.5 degrees Centigrade was the goal of the countries that put together the 2015 Paris climate accord? Well, if you don’t, no problem, since, as Carrington also recently reported, thanks to an exclusive Guardian survey, “Hundreds of the world’s leading climate scientists expect global temperatures to rise to at least 2.5C (4.5F) above preindustrial levels this century, blasting past internationally agreed targets and causing catastrophic consequences for humanity and the planet.” And almost half of them expect it to hit 3C! Now, try to imagine that future planet of, well, I’m not sure you can say “ours” anymore, or better yet, check out another recent Carrington piece on the kinds of horrors — and they would be horrors of an unprecedented sort — such scientists now think a 3C world might hold for us.

Oh, and as Milman wrote recently, a new report suggests that “the economic damage wrought by climate change is six times worse than previously thought.” That’s already! And we’ve also already crept close to that 1.5C mark. But let me not go on. You get the idea. And each of those stories should have been a blazing headline across a planet that’s already feeling the heat in every sense imaginable, even if, in our normal reckoning, what’s happening doesn’t yet count as a world war (or at least a war on the world as we’ve known it).

Don’t you find all of that breathtaking (given the nature of heat)? And isn’t it amazing that, despite what it means for our future, it’s so often hardly considered headline-making news?

And mind you, there’s so much we don’t yet even know: Is the fierce tornado season that’s recently stretched from Texas through Iowa and beyond another climate-change-induced phenomenon? It’s certainly possible. Will the coming hurricane season set a series of records from hell, as the National Oceanic and Atmospheric Administration (NOAA) is now warning us, thanks in part to the fact that the tropical waters of the Atlantic Ocean have heated to all-time-record levels? Again, we’ll have to wait (but not for long) to see what happens. And is that record rise in U.S. billion-dollar — yes, billion-dollar! — weather disasters recorded by NOAA in 2023, another climate-change-induced horror? It certainly seems likely.

We are, in other words, already in a mad new world of “war” (as well as the mad old version of the same). And given how possible it is that Donald Trump will become President Fossil Fuel again, we may be left to face an all too literally mad future (along with staggering new profits for the big fossil-fuel companies) in what, until recently, still passed, despite endless disastrous wars, for the greatest power on the face of the Earth. And in retrospect, in climate terms, I suspect that even Joe Biden will seem distinctly lacking and congressional Republicans mad beyond words.

Take, for instance, President Biden’s actions in relation to this planet’s other greenhouse-gas burning monster, China. (While the U.S. has historically been the greatest greenhouse gas emitter, China now tops the list.) Unlike Donald Trump, Joe Biden does indeed take climate change seriously, but he’s also supported Israel in a war from hell that’s throwing vast amounts of greenhouse gases into the atmosphere and, when it comes to China, his urge hasn’t truly been to cooperate. Instead, his focus has been on expanding the U.S. military presence throughout Asia, including putting Green Berets on an island just 10 kilometers off China’s coast. (Imagine how this country would react if — and it would hardly be comparable — China were to assign its version of special forces troops to Cuba!)  In other words, he’s been at work creating the conditions for a new, if not hot, then certainly all-too-warm war between the two greatest greenhouse-gas polluters on this ever-warming planet. 

Brilliant! And the Chinese response? To pal it up with Vladimir Putin! (Equally brilliant!)

As mid-2024 approaches, the question remains: Can we humans stop making war on each other or preparing for yet more of the same and begin dealing with a planet heading to hell in a proverbial handbasket? Can we face the fact that the enemy is indeed us?

Via Tomdispatch.com

]]>
Trump’s attempt at Planeticide was Worse than Hush Money Sex Pay-Off https://www.juancole.com/2024/05/trumps-attempt-planeticide.html Fri, 31 May 2024 05:13:55 +0000 https://www.juancole.com/?p=218851 Ann Arbor (Informed Comment) – It is great good news, of course, that Trump was finally held accountable for his hush money pay off to porn star Stormy Daniels to keep her quiet about their hook-up so as to win the 2016 presidential election. Had she gone public in October, 2016 in the wake of the release of the Hollywood Access tape about grabbing genitalia, he may well have lost. That he is now a felon invalidates his entire presidency. It does not erase all the harm he did, in reshaping the Supreme Court as a tool of white nationalist Christian patriarchy, and it won’t bring back the hundreds of thousands of people who died of COVID because of his wrongheaded public health policies. But it is some form of minor justice.

The conviction, however, underlines that American law and politics is still primarily about property rather than about the value of human life. Both Richard M. Nixon and Donald J. Trump went down over Lockean crimes. Nixon ordered a third rate burglary (twice!). Trump arranged for a pay-off to a porn star. Both committed their crimes in furtherance of their political careers. Nixon had the Democratic National Committee headquarters in the Watergate Building in Washington, D.C. burgled. Trump had a catch and kill scheme implemented for Stormy Daniels’ memoirs. Ironically, likely neither needed to commit those crimes to win.

It is a little frustrating, however, that our priorities as a society are still so parochial and twentieth-century in character, and that we are not more outraged at the truly massive damage Trump did to our planet. He should have been tried and convicted of attempted planeticide.

1. Trump took the United States out of the 2015 Paris Climate Accord in November, 2020, trashing all the pledges the country had made to reduce its massive carbon footprint. The US, with 4.2% of the world’s population, produces nearly 14% of the world’s carbon dioxide, putting out twice as much CO2 as the 27 nations of the European Union. By leaving the Paris agreement, Trump encouraged other countries to slack off on their climate commitments, endangering the whole world.

2. Trump scrapped President Obama’s Clean Power Plan, his attempt to regulate CO2 emissions, and Trump’s rules would have put an extra half a billion tons of carbon dioxide into the atmosphere over a decade. When we’re trying to cut CO2 to zero by 2050, that was a step in completely the wrong direction.

MSNBC: “‘Quid pro quo:’ Trump vowed to gut climate laws in exchange for $1B from oil bosses”

3. Trump also lowered auto emissions standards, helping the big car companies avoid going electric longer and adding another 450 million tons of CO2. Now that China has more advanced electric car technology than the US and can make EVs more cheaply for the world market, it becomes clear that Trump may have knee-capped the US preeminence in the global auto-manufacturing sector, for good. Since it is increasingly clear that auto emissions cause Alzheimers, Trump also damaged our brains to be more like his own.

4. Trump actively promoted the production of the very dangerous atmospheric heating agent, methane, a greenhouse gas that prevents the heat caused by the sun’s rays from radiating back out into space at the old eighteenth-century rate. He removed government regulations requiring Big Oil to limit methane emissions from drilling.

5. Trump put a 30% tariff on solar panels, vastly slowing the expansion of solar power in the US and costing the country some 62,000 jobs in the solar industry. Since solar replaces coal and fossil gas for electricity generation, this is another way Trump promoted carbon dioxide emissions.

6. Trump’s corrupt Interior Department subsidized coal and fossil gas, but raised the rents for wind turbines on federal lands. Trump, fuelled by an irrational hatred of wind turbines, such that he falsely asserts that they cause cancer, was a constant worry to the industry all the time he was in office.

7. The sum total of all Trump’s anti-climate regulations would have added 1.8 billion tons of carbon dioxide to the atmosphere had they not largely been reversed by the subsequent Biden administration. This one man tried to engineer an extra tonnage of CO2 emissions equal to the annual output of all of Russia.

I have suggested that we could get a better sense of how disgusting carbon dioxide and methane emissions are if we called them farts instead of using a fancy word like “emissions.” How many tons of CO2 did America fart out last year?

Trump, who spent much of his trial farting and dozing, tried to have us fart out an extra 1.8 billion tons of CO2.

Some small percentage of all the damage human-made climate change will do to the United States in the coming years will have been caused by one man. And if he can get into office again he will try to doom the planet.

Now that is an indictment.

]]>
Climate Emergency: India’s Massive Heat Wave Signals extreme Danger for an Aging Global Population https://www.juancole.com/2024/05/massive-signals-population.html Fri, 31 May 2024 04:06:18 +0000 https://www.juancole.com/?p=218848 By Deborah Carr, Boston University; Enrica De Cian, Ca’ Foscari University of Venice; Giacomo Falchetta, Ca’ Foscari University of Venice and Ian Sue Wing, Boston University | –

(The Conversation) – A deadly heat wave gripped large regions of Asia for weeks in spring 2024, sending temperatures in India’s capital region over 120 degrees Fahrenheit (49 Celsius) in late May. Officials in Delhi warned residents that they could face power outages and water shortages.

Earlier in the month, campaigning politicians, news announcers and Indian voters waiting in long lines had passed out in the oppressive heat.

From as far north as Japan to as far south as the Philippines, the relentless heat wreaked havoc on everyday life. Students and teachers in Cambodia were sent home from school in early May, as their hand-held fans provided little protection against the stifling heat and humidity in their poorly ventilated classrooms. Farmers in Thailand saw their crops wither and mourned the loss of livestock that perished under the punishing sun. Hundreds of people died from the heat.

Most of the planet has suffered the dire effects of extreme heat in recent years. Phoenix hit 110 F (43.3 C) or higher for 31 straight days in summer 2023, and Europe saw unprecedented heat that killed hundreds and contributed to devastating wildfires in Greece.

Regardless of where or when a heat wave strikes, one pattern has been a constant: Older adults are the most likely to die from extreme heat, and the crisis is worsening.

We study climate change and population aging. Our research documents two global trends that together portend a dire future.

More older adults will be at risk of heat stress

First, temperatures are hotter than ever. The nine-year period from 2015 and 2023 had the highest average temperatures since global records began in 1880.

CBC: “Delhi records all-time record temperature of 52.9 C”

Second, the population is aging worldwide. By 2050, the number of people ages 60 and older will double to nearly 2.1 billion, making up 21% of the global population. That proportion is 13% today.

These combined forces mean that ever-rising numbers of vulnerable older adults will be exposed to intensifying heat.

To understand the risks ahead, we developed population projections for different age groups and combined them with climate change scenarios for the coming decades. Our analyses show that by 2050, more than 23% of the world population ages 69 and older will be living in regions where peak temperatures routinely surpass 99.5°F (37.5°C), compared with just 14% today.

That means that as many as 250 million additional older adults will be exposed to dangerously high temperatures.

Mapping the data shows that most of these older adults live in lower- and middle-income countries with insufficient services and limited access to electricity, cooling appliances and safe water.

In historically cooler regions in the Global North, including North America and Europe, rising temperatures will be the main force driving older adults’ heat exposure. In historically hotter regions in the Global South such as Asia, Africa and South America, population growth and increases in longevity mean that steeply rising numbers of older adults will be exposed to intensifying heat-related risks.

Policymakers, communities, families and older residents themselves need to understand these risks and be prepared because of older adults’ special vulnerabilities to heat.

Extreme heat is especially harmful to older adults

High temperatures are oppressive for everyone, but for older adults they can be deadly.

Extreme heat worsens common age-related health conditions such as heart, lung and kidney disease and can cause delirium. Older people don’t sweat as much as younger people, which makes it harder for their bodies to cool down when temperatures spike. These problems are intensified by common prescription medications, such as anticholinergics, which further reduce the capacity to sweat.

Spending time outdoors in hot humid weather can cause dehydration, a problem worsened by the side effects of prescription medications such as diuretics and beta-blockers. Dehydration can make older adults weak and dizzy, increasing their risk of falls and injury. These threats are even worse in regions lacking access to safe and affordable drinking water.

An older woman holds a glass of water next to a list of safety tips for older adults facing heat waves.
Tips for avoiding heat illness can save lives, but they can be difficult to follow, even in wealthy countries.
Ohio Department of Aging

Poor air quality makes it difficult to breath, especially for those who already have lung problems such as chronic obstructive pulmonary disease, or COPD.

For older adults with physical health problems, temperatures as low as 80 F (26.7 C) can pose significant danger. And when humidity is as high as 90%, even 78 F (25.6 C) can be hazardous to older adults.

Nighttime heat is especially harmful for older adults whose homes lack air conditioning or who can’t afford to run their air conditioners for long periods. The ideal temperature for older adults’ restful sleep is between 68 and 77 F (20 and 25 C), and sleep quality diminishes as temperatures rise. A night of restless sleep can make an older adult more depressed and confused during their waking hours. Medications also can lose their effectiveness if stored in places much warmer than 77 F (25 C).

Older adults also may suffer emotionally during stifling heat waves

Being stuck indoors when temperatures are unbearable can make older adults bored, depressed and isolated. People with cognitive impairments may underestimate the dangers of extreme heat or may not understand the heat advisories.

Those who have physical mobility limitations or lack access to transportation can’t easily travel to public cooling centers – if there is one nearby – or find relief in nearby “green and blue areas,” such as parks and lakes.

These threats are especially dire in low- and middle-income nations, where older adults are more likely to live in substandard housing and lack access to high-quality health care or ways to cool down in the heat. We talk about this as “systemic cooling poverty.”

What can be done?

Policymakers can work to cut greenhouse gas emissions from fossil fuels in vehicles, power plants and factories, which drive global warming, and develop effective plans to protect older people from heat risk. Older adults and their caregivers also can take steps to adapt.

But efforts to help need to be tailored to each region and population.

Wealthy municipalities can increase public investments in early warning systems and ride services to cooling centers and hospitals. They can use geographic information systems to identify neighborhoods with high concentrations of older adults and expand power grids to manage increasing demand for air conditioning.

In regions with substandard housing, limited access to clean water and few public supports such as cooling centers, much larger changes are necessary. Providing better health care, water and housing and reducing air pollution that can mitigate health problems during heat waves require significant changes and investments many countries struggle to afford.

The World Health Organization and Pan American Health Organization warn that this decade will be critical for preparing communities to handle rising heat and the risk to aging populations. Across all regions, researchers, practitioners and policymakers could save lives by heeding their call.

This article, originally published May 22, 2024, has been updated with extreme heat in Delhi.The Conversation

Deborah Carr, A&S Distinguished Professor of Sociology and Director of the Center for Innovation in Social Science, Boston University; Enrica De Cian, Professor of Environmental Economics, Ca’ Foscari University of Venice; Giacomo Falchetta, Research Scholar in Energy, Climate and Environment, Ca’ Foscari University of Venice, and Ian Sue Wing, Professor of Earth and Environment, Boston University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

]]>