(The Conversation) – In the last few days, a seasonal weather system known in Spain as the “cold drop” or DANA (an acronym of depresión aislada en niveles altos: isolated depression at high levels) has caused heavy rain and flooding across Spain’s Mediterranean coast and in Andalusia, especially in the Valencian Community, Castilla-La Mancha and the Balearic Islands. The storm has left hundreds dead and many more missing, with immense damage in the affected areas.

50 years ago, a DANA occurred every three or four years, typically in November. Today, they can happen all year round.

How does a DANA form?

These storms are formed in the same way as Atlantic hurricanes or typhoons in China. The difference is that the Mediterranean is smaller than these areas, and so storms have a shorter path, and store less energy and water vapour.

Decades ago, warm sea surfaces at the end of summer would cause water to evaporate into the atmosphere. Today, the sea surface is warm all year, constantly sending massive amounts of water vapour up into the atmosphere.

The poles are also much warmer now than they were 50 years ago. As a result, the polar jet stream – the air current that surrounds the Earth at about 11,000 metres above sea level – is weakened and, like any slowly flowing current, has meanders. These bring cold air, usually from Greenland, into the high atmosphere over Spain.

The evaporated water rising off the sea meets this very cold air and condenses. The Earth’s rotation causes the rising air to rotate counterclockwise, and the resulting condensation releases huge quantities of water.

This combination of factors causes torrential, concentrated rains to fall on Spain, specifically on the Balearic Islands and the Mediterranean coast, sometimes reaching as far inland as the Sierra de Segura mountains in Andalucia and the Serrania de Cuenca mountains in Castilla la Mancha and Aragón. These storms can move in very fast, and are extremely violent.

On occasions, this Mediterranean water vapour has moved as far as the Alps, crossing its western point and causing downpours in Central Europe.

Warming oceans, warming poles

Many years ago, humans discovered a gigantic source of energy: 30 million years worth of the sun’s energy, stored under the ground by plants and animals. Today, we are burning through this resource fast.

This fossilised energy source is made up of carbon compounds: coal, hydrocarbons and natural gas. By burning them, we release polyatomic molecules such as carbon dioxide, methane, nitrogen oxides and other compounds. Once released into the atmosphere, these trap some of the heat radiating from the earth’s soil and seas, returning it to the planet’s surface.

This process is what causes climate change, and it can occur naturally. When these molecules, especially methane, are stored in continental ocean slopes, the water cools and the carbon dioxide captured by the waves is trapped inside. As the planet cools and sea levels fall, methane is eventually released into the atmosphere. The atmosphere warms up, warming the sea, and the sea releases CO₂ which amplifies the effect of the methane. The planet then gets warmer and warmer, causing glaciers to melt and sea levels to rise.

This alternation of cold and hot has occurred eight times over the last million years.

No end in sight for fossil fuels

Today we are forcing this process by emitting huge quantities of polyatomic gases ourselves. The question is whether we can limit these emissions. So far, this has been impossible.

To this we can add the fact that by 2050 there will be about two billion more human beings on the planet, who will also need food, housing and transport. This means more chemical fertilisers, cement, petrol, diesel and natural gas will be consumed, leading to further polyatomic gases being released.

Various measures to limit the burning of carbon compounds are falling short, or developing very slowly. Hopes for electric cars, for example, have been greatly diminished in recent years.

In Europe progress is being made in solar and wind energy, but electricity only makes up around a third of the energy consumed. Europe is also the only region making real progress on alternative electricity generation – much of China’s progress is being offset by its continued construction of coal-fired power plants.

Despite some large, high-profile projects, the reality is that we will continue to burn carbon compounds for many decades to come. This means the concentration of polyatomic gases in the atmosphere will increase over the next century, and with it the temperature of the planet, leading to more DANAs, hurricanes, typhoons and floods.

Climate adaptation is vital

What we are left with is adaptation, which is much more manageable as it does not require international agreements.

In Spain, for instance, we can control flooding through massive reforestation in inland mountainous areas, and through rainwater harvesting systems – building small wetlands or reservoirs on hillsides. This would slow the amount of water reaching the ramblas and barrancos, the gorges and channels that funnel rainwater through Spain’s towns and prevent them from flooding. At the same time, this would mean water can be captured by the soil, where it can then be gradually returned to the rivers and reservoirs.

Not only is this feasible, it is cost-effective, generates many jobs, and could save hundreds, if not thousands of lives.

Antonio Ruiz de Elvira Serra, Catedrático de Física Aplicada, Universidad de Alcalá

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

—–

Bonus video added by Informed Comment:

AP: “Climate change is making extreme downpours in Spain heavier and more likely, scientists say”

(The Conversation) – Delhi is reeling from the most extreme heatwave India has ever seen. While the record-breaking maximum recorded temperature of 52.9°C has been called into question by India’s Meteorological Department, it’s entirely possible. The city has been sweltering, with top temperatures ranging from 45.2°C to 49.1°C, at the limit of human endurance.

This event follows hot on the heels of extreme heatwaves across Asia as well as the Sahel in Africa.

Climate scientists have long warned these days would come. The recent acceleration in warming means it’s happening sooner than we expected. So we need to work harder and faster to reduce greenhouse emissions and get global heating under control.

Fortunately, India’s current heatwave conditions are expected to ease over the coming days. But the death toll is likely to rise, as people succumb to multiple health effects. Extreme heat has a long tail of destruction. Almost every chronic health condition is made worse by exposure to such temperatures.

Australians should take note. We are not safe, and we need to prepare for heat to hit us just as hard. It could even be worse here, because people with air conditioning can be lulled into a false sense of security. There’s no guarantee these air con units will extract enough heat to effectively cool our living and working areas, and electricity networks can fail.

What does extreme heat do to people?

When you’re hot, your body tries to cool off by sweating. This involves sending blood to the surface. Blood vessels at the skin dilate and the skin looks flushed, but this causes your blood pressure to fall. The heart has to work harder.

We need to keep our core temperature around 36–37°C. If the surrounding air is hotter, the body’s efforts to cool down can do just the opposite and absorb more heat. This is made worse during exercise, when 80% of the energy produced by working muscles is heat.

When we cannot shed that extra heat, our core temperature increases. At the microscopic level, cellular damage occurs. Extended heat exposure can lead to organ failure and death.

The “wet bulb globe temperature” factors in the humidity of the atmosphere. High humidity means the air is already saturated with water, so sweat on our skin doesn’t evaporate and we don’t get that cooling mechanism.

That’s why 33°C in dry Melbourne can be warm but tolerable, but 33°C in Darwin can feel stifling.

It’s not as if we could climb into an oven and be ok though, just because an oven is dry. There’s a dry heat maximum, which varies from person to person depending on their overall health and fitness. There is no particular temperature at which we can say a certain proportion of people will die, because there are so many variables.

In public health we talk about extreme heat having a “long tail” in a statistical sense. The number of excess deaths spikes during and immediately after the heatwave, but death rates don’t drop back to zero straight away. Organ damage is a likely cause. Mass heat death events are a relatively new phenomena, so the detailed understanding of the physiological mechanisms is still lacking.

India: hot and humid on the campaign trail

The India Meteorological Department installed more automatic weather stations across Delhi and the national capital region during the summer of 2022.

Wednesday’s maximum temperature ranged from 45.2°C to 49.1°C, except for Mungeshpur on Delhi’s northwest outskirts, which reported 52.9°C. As this was an outlier compared to other weather stations, the Department said it could be due to an error in the sensor.

However, it’s also possible Mungeshpur is a genuine hotspot due to local heat generation and trapping – the so-called “heat island effect”.

Delhi is crowded, hot and humid with limited access to air conditioning. What’s more, people have been coming out in the heat during India’s elections.

In previous heatwaves across India and Pakistan, many thousands of people died in their homes. It’s unclear what the ultimate death toll from the current heatwave will be.

WION: Extreme heatwave in India | Inside South Asia

The message for other nations

Clearly it’s time for other hot countries to ramp up their own heatwave preparations.

Australia, for example, is vulnerable to extreme heat, not just because of its hot climates but also because people acclimatise to their average local conditions. Problems arise when the weather is extreme for a particular location.

Tasmanians can succumb to temperatures regarded as normal for people in Broken Hill, New South Wales. Human tolerance for heat is variable, and can vary markedly within each individual, depending on their fitness level, stage of life, familiarity with heat and capacity to regulate their core temperature.

Climate science, modelling and human physiology may be complex, but how we must respond is simple. Everyone should be familiar with the signs and symptoms of heat stress, first aid treatment and when to call an ambulance. This includes school-aged children who may be the first to encounter their parent in strife.

People most at risk include those who are working outside or caring for others, travelling long distances, suffering from chronic illness, or simply ill-informed about the dangers of extreme heat.

Climate change is here, now

Climate scientists have been warning the world about the dangers of extreme heat for decades. It’s just going from bad to worse.

The Delhi heatwave is further evidence that climate modelling has been largely underestimating the speed and intensity of global warming.

Heat beyond the limits of human endurance is no longer a distant dystopian future. It’s here and now.

Liz Hanna, Honorary Associate Professor in Environmental Health, Australian National University

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

Florida is among the states most vulnerable to deadly human-caused climate change. Here are the top three climate disasters DeSantis is bringing down on Floridians’ heads and from which he is trying to hide by sanitizing state web sites. I don’t think Mother Nature reads web sites.

1.

Sea level rise in the entire US southeast is accelerating with frightening rapidity. It was rising 2 millimeters a year throughout the twentieth century. NASA says it is now rising 10 millimeters a year, five times the rate of the previous century. The world’s seas are rising everywhere because of melting surface ice at the poles. But the waters around Florida are rising twice as fast as the global average. The seas around Florida have risen eight inches since 1950, and could rise another six inches by 2040. Fourteen inches may not sound like much, but it is over a foot and just imagine that your house was at sea level in 1950 and now there is over a foot of water standing in your living room.

Why is this happening? NASA says it is in part because of the increasingly hot water temperatures in the Gulf of Mexico and the Atlantic coast of the southeast. Hot water expands and fills up more space than cold water, so if you live on the coast it is coming for your kitchen. That is on top of ice melt. Then, there’s a local situation not being caused by climate change, having to do with wind and water circulation in the Gulf. But nearly half of the accelerated sea level rise around Florida is on us, on human beings burning fossil fuels and putting heat-trapping carbon dioxide into the atmosphere.

“Wicked Witch of the Southeast,” by Juan Cole, Digital, Dream / Dreamworld v.3 / PS Express, 2024.

2.

Hurricanes. Scientists already expect 2024 to see a higher than normal number of hurricanes in the Southeast, as many as 23 named storms. The unusually hot water in the Gulf of Mexico this spring, the unusually hot water in the Atlantic, and the end of the El Nino and beginning of La Nina, all play into this danger. La Nina, a cooling pattern, will weaken pressure in the Gulf and so more Atlantic hurricanes will be drawn west.

The problem is not, however, just a matter of this year. Hurricanes are becoming more powerful, with an increase in the number of category 4 and category 5 storms. In fact, some scientists are saying we need to expand the scale with a category 6. The hotter the water, the more powerful the hurricane, and the water is getting hotter and hotter. Such hurricanes over very hot sea water move slowly. Moreover, hot water puts more water vapor into the air above it, which hurricanes then cause to precipitate, so the severity of the downpours is also increasing. And the hurricanes move slowly now, so they just hover over land and drench the land below. There is more flooding and more storm surges. Florida gets more hurricanes than any other state, and twice as many hit there as hit Texas.

3.

Heat waves. The heat index for Miami is 112° F. Palm Beach county is right now under a heat advisory because the heat index will be 108° F. for over two hours. But you know that saying, “It’s not the heat, it’s the humidity?’ It is correct. The temperature will be 94° F. (96° F. in Ft. Lauderdale), which is eight to ten degrees higher than the average for late May. But if you add in the humidity, you get the heat index. The humidity is 73% in West Palm Beach today.

We humans cool down by sweating. The moisture on our skin evaporates, which has a cooling effect. A heat index of 112° F. makes it hard for us to cool down that way. The heat and moisture in the air mean that the sweat doesn’t evaporate as much. So here’s the thing. If the temperature reaches 120° F. and the humidity at the same time reaches 80%, and you are out in that for several hours, it will kill you dead. But the heat index can become unhealthy well below those numbers. Florida’s average temperature will likely increase by at least 6° F. over the next few decades, but that is the average. On some days in some places, you could hit a heat index that is fatal to some residents. Florida is at risk for being part of a new and growing deadly American heat belt where quality of life plummets. Helpfully, the DeSantis regime has passed a law forbidding local governments to require water and heat breaks for workers laboring outside in the heat, which for some may be a death sentence.

The average surface temperature of the US this past winter was 37.6°, which is 5.4° F. above the norm. A winter that is 5 degrees warmer than normal ought to be horrifying. This is not normal. And we are only at the beginning of this heating.

One way you could tell it was hot was that Wisconsin had its first February tornado on record. Wisconsin.

Another way you could tell that it was a hot, hot winter was that Texas experienced the largest and most destructive wildfires in the past 20 years, and likely in the state’s recorded history. The Smokehouse Creek Fire merged with another huge conflagration and burned 1,075,000 acres in Texas and Oklahoma, making it the second largest fire in US history. It is still only 75% contained. In the Texas Panhandle, at least 10,000 cattle have been killed or so badly injured they’ll have to be euthanized, while many grain production companies reported “total losses,” according to CBS News. Hundreds of homes have been destroyed, and two people killed.

Wildfires are common in Texas in the summer, and occur as early as March in the Panhandle, but to have so much of the state aflame in February is, let us say, unusual.

KFOR OKlahoma News 4 Video from Thursday: “Texas/ Oklahoma wildfires burn more than 1.3 million acres in a week”

But it isn’t just Texas. The United States of America was lit up like a Christmas tree in February, with unusually high temperatures. Consider this temperature map for February:

H/t NOAA

Then there were a series of atmospheric rivers that inundated California, causing widespread flooding and destruction. Phys.org notes, “At one point, weather agencies posted flood watches for nearly the entirety of California’s coast.” As we heat up the earth, we cause more water to evaporate from the oceans, making the atmosphere denser with moisture. Ribbons of moisture move from the equator up to the temperate zones and dump their water. Climate change increases the rainfall released and also changes the patterns of the atmospheric rivers.

In 2023, the US had twenty-eight disasters costing a billion dollars or more. During the past 40 years, the average number of billion-dollar climate disasters per annum was only 8.5. But in the past 5 years the average has been about 20 such very costly catastrophes. The rate of catastrophe is sky-rocketing.

This finding is yet another indication that global heating is proceeding at least as fast as climate scientists projected at the beginning of our century, and in many cases much faster. Climate risks becoming chaotic if we heat up the earth’s surface more than 2.7° F. (1.5° C.) above the preindustrial average. We’ve already heated it up to around 2.1° F. higher than that 18th century average, by spewing billions of metric tons of carbon dioxide, a heat-trapping gas, into the atmosphere. We’re wrecking the earth by burning coal for heat and electricity, or fossil gas, or by burning petroleum in automobiles and trucks. We still aren’t reducing the amount of CO2 we put into the atmosphere annually, though its increase has leveled off. We have to cut it out. Now.

Superstorms, abrupt climate shifts and New York City frozen in ice. That’s how the blockbuster Hollywood movie “The Day After Tomorrow” depicted an abrupt shutdown of the Atlantic Ocean’s circulation and the catastrophic consequences.

While Hollywood’s vision was over the top, the 2004 movie raised a serious question: If global warming shuts down the Atlantic Meridional Overturning Circulation, which is crucial for carrying heat from the tropics to the northern latitudes, how abrupt and severe would the climate changes be?

Twenty years after the movie’s release, we know a lot more about the Atlantic Ocean’s circulation. Instruments deployed in the ocean starting in 2004 show that the Atlantic Ocean circulation has observably slowed over the past two decades, possibly to its weakest state in almost a millennium. Studies also suggest that the circulation has reached a dangerous tipping point in the past that sent it into a precipitous, unstoppable decline, and that it could hit that tipping point again as the planet warms and glaciers and ice sheets melt.

In a new study using the latest generation of Earth’s climate models, we simulated the flow of fresh water until the ocean circulation reached that tipping point.

The results showed that the circulation could fully shut down within a century of hitting the tipping point, and that it’s headed in that direction. If that happened, average temperatures would drop by several degrees in North America, parts of Asia and Europe, and people would see severe and cascading consequences around the world.

We also discovered a physics-based early warning signal that can alert the world when the Atlantic Ocean circulation is nearing its tipping point.

The ocean’s conveyor belt

Ocean currents are driven by winds, tides and water density differences.

In the Atlantic Ocean circulation, the relatively warm and salty surface water near the equator flows toward Greenland. During its journey it crosses the Caribbean Sea, loops up into the Gulf of Mexico, and then flows along the U.S. East Coast before crossing the Atlantic.

This current, also known as the Gulf Stream, brings heat to Europe. As it flows northward and cools, the water mass becomes heavier. By the time it reaches Greenland, it starts to sink and flow southward. The sinking of water near Greenland pulls water from elsewhere in the Atlantic Ocean and the cycle repeats, like a conveyor belt.

Too much fresh water from melting glaciers and the Greenland ice sheet can dilute the saltiness of the water, preventing it from sinking, and weaken this ocean conveyor belt. A weaker conveyor belt transports less heat northward and also enables less heavy water to reach Greenland, which further weakens the conveyor belt’s strength. Once it reaches the tipping point, it shuts down quickly.

What happens to the climate at the tipping point?

The existence of a tipping point was first noticed in an overly simplified model of the Atlantic Ocean circulation in the early 1960s. Today’s more detailed climate models indicate a continued slowing of the conveyor belt’s strength under climate change. However, an abrupt shutdown of the Atlantic Ocean circulation appeared to be absent in these climate models.

Ted-Ed Video: “How do ocean currents work? – Jennifer Verduin”

This is where our study comes in. We performed an experiment with a detailed climate model to find the tipping point for an abrupt shutdown by slowly increasing the input of fresh water.

We found that once it reaches the tipping point, the conveyor belt shuts down within 100 years. The heat transport toward the north is strongly reduced, leading to abrupt climate shifts.

The result: Dangerous cold in the North

Regions that are influenced by the Gulf Stream receive substantially less heat when the circulation stops. This cools the North American and European continents by a few degrees.

The European climate is much more influenced by the Gulf Stream than other regions. In our experiment, that meant parts of the continent changed at more than 5 degrees Fahrenheit (3 degrees Celsius) per decade – far faster than today’s global warming of about 0.36 F (0.2 C) per decade. We found that parts of Norway would experience temperature drops of more than 36 F (20 C). On the other hand, regions in the Southern Hemisphere would warm by a few degrees.

These temperature changes develop over about 100 years. That might seem like a long time, but on typical climate time scales, it is abrupt.

The conveyor belt shutting down would also affect sea level and precipitation patterns, which can push other ecosystems closer to their tipping points. For example, the Amazon rainforest is vulnerable to declining precipitation. If its forest ecosystem turned to grassland, the transition would release carbon to the atmosphere and result in the loss of a valuable carbon sink, further accelerating climate change.

The Atlantic circulation has slowed significantly in the distant past. During glacial periods when ice sheets that covered large parts of the planet were melting, the influx of fresh water slowed the Atlantic circulation, triggering huge climate fluctuations.

So, when will we see this tipping point?

The big question – when will the Atlantic circulation reach a tipping point – remains unanswered. Observations don’t go back far enough to provide a clear result. While a recent study suggested that the conveyor belt is rapidly approaching its tipping point, possibly within a few years, these statistical analyses made several assumptions that give rise to uncertainty.

Instead, we were able to develop a physics-based and observable early warning signal involving the salinity transport at the southern boundary of the Atlantic Ocean. Once a threshold is reached, the tipping point is likely to follow in one to four decades.

The climate impacts from our study underline the severity of such an abrupt conveyor belt collapse. The temperature, sea level and precipitation changes will severely affect society, and the climate shifts are unstoppable on human time scales.

It might seem counterintuitive to worry about extreme cold as the planet warms, but if the main Atlantic Ocean circulation shuts down from too much meltwater pouring in, that’s the risk ahead.

This article was updated on Feb. 11, 2024, to fix a typo: The experiment found temperatures in parts of Europe changed by more than 5 F per decade.

René van Westen, Postdoctoral Researcher in Climate Physics, Utrecht University; Henk A. Dijkstra, Professor of Physics, Utrecht University, and Michael Kliphuis, Climate Model Specialist, Utrecht University

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

National weather analysts released their 2023 billion-dollar disasters list on Jan. 9, just as 2024 was getting off to a ferocious start. A blizzard was sweeping across across the Plains and Midwest, and the South and East faced flood risks from extreme downpours.

The U.S. set an unwelcome record for weather and climate disasters in 2023, with 28 disasters that exceeded more than US$1 billion in damage each.

While it wasn’t the most expensive year overall – the costliest years included multiple hurricane strikes – it had the highest number of billion-dollar storms, floods, droughts and fires of any year since counting began in 1980, with six more than any other year, accounting for inflation.

The year’s most expensive disaster started with an unprecedented heat wave that sat over Texas for weeks over the summer and then spread into the South and Midwest, helping fuel a destructive drought. The extreme heat and lack of rain dried up fields, forced ranchers to sell off livestock and restricted commerce on the Mississippi River, causing about US$14.5 billion in damage, according to the National Oceanic and Atmospheric Administration’s conservative estimates.

Extreme dryness in Hawaii contributed to another multi-billion-dollar disaster as it fueled devastating wildfires that destroyed Lahaina, Hawaii, in August.

Other billion-dollar disasters included Hurricane Idalia, which hit Florida in August; floods in the Northeast and California; and nearly two dozen other severe storms across the country. States in a swath from Texas to Ohio were hit by multiple billion-dollar storms.

NBC News: “New details of the devastating Lahaina wildfire that killed over 100 people”

El Niño played a role in some of these disasters, but at the root of the world’s increasingly frequent extreme heat and weather is global warming. The year 2023 was the hottest on record globally and the fifth warmest in the U.S.

I am an atmospheric scientist who studies the changing climate. Here’s a quick look at what global warming has to do with wildfires, storms and other weather and climate disasters.

Dangerous heat waves and devastating wildfires

When greenhouse gases, such as carbon dioxide from vehicles and power plants, accumulate in the atmosphere, they act like a thermal blanket that warms the planet.

These gases let in high-energy solar radiation while absorbing outgoing low-energy radiation in the form of heat from the Earth. The energy imbalance at the Earth’s surface gradually increases the surface temperature of the land and oceans.

The most direct consequence of this warming is more days with abnormally high temperatures, as large parts of the country saw in 2023.

Phoenix went 30 days with daily high temperatures at 110 F (43.3 C) or higher and recorded its highest minimum nighttime temperature, with temperatures on July 19 never falling below 97 F (36.1 C).

Although heat waves result from weather fluctuations, global warming has raised the baseline, making heat waves more frequent, more intense and longer-lasting.

That heat also fuels wildfires.

Increased evaporation removes more moisture from the ground, drying out soil, grasses and other organic material, which creates favorable conditions for wildfires. All it takes is a lightning strike or spark from a power line to start a blaze.

How global warming fuels extreme storms

As more heat is stored as energy in the atmosphere and oceans, it doesn’t just increase the temperature – it can also increase the amount of water vapor in the atmosphere.

When that water vapor condenses to liquid and falls as rain, it releases a large amount of energy. This is called latent heat, and it is the main fuel for all storm systems. When temperatures are higher and the atmosphere has more moisture, that additional energy can fuel stronger, longer-lasting storms.

Tropical storms are similarly fueled by latent heat coming from warm ocean water. That is why they only form when the sea surface temperature reaches a critical level of around 80 F (27 C).

With 90% of the excess heat from global warming being absorbed by the ocean, there has been a significant increase in the global sea surface temperature, including record-breaking levels in 2023.

Higher sea surface temperatures can lead to stronger hurricanes, longer hurricane seasons and the faster intensification of tropical storms.

Cold snaps have global warming connections, too

It might seem counterintuitive, but global warming can also contribute to cold snaps in the U.S. That’s because it alters the general circulation of Earth’s atmosphere.

The Earth’s atmosphere is constantly moving in large-scale circulation patterns in the forms of near-surface wind belts, such as the trade winds, and upper-level jet streams. These patterns are caused by the temperature difference between the polar and equatorial regions.

As the Earth warms, the polar regions are heating up more than twice as fast as the equator. This can shift weather patterns, leading to extreme events in unexpected places. Anyone who has experienced a “polar vortex event” knows how it feels when the jet stream dips southward, bringing frigid Arctic air and winter storms, despite the generally warmer winters.

In sum, a warmer world is a more violent world, with the additional heat fueling increasingly more extreme weather events.

This article, originally published Dec. 19, 2023, was updated Jan. 9, 2024, with NOAA’s disasters list.

Shuang-Ye Wu, Professor of Geology and Environmental Geosciences, University of Dayton

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

Although 2023 saw the beginnings of an El Nino climate phenomenon, which brings extra heat every few years, the El Nino effects were still small this year and most of the increase in heating was owing to humans having put billions of tons of greenhouse gases into the atmosphere (which they are still doing steadily, instead of reducing emissions).

Moreover, NOAA says, we have seen 537 (soon to be 538) months in a row of temperatures above the average for the twentieth century.

That statistic means that no one born after 1978 has ever lived through a normal year of temperatures, as we twentieth-century people knew them (I’m 71). We moved a lot and my father was stationed for a few months at places like Fort Dietrich in Maryland and Fort Dix in New Jersey. I can’t remember now when and where, but I recollect joining with other children to tunnel beneath the snow in the winter. Do children do that now? Last year Maryland had virtually no snow, and Baltimore got 0.2 inches. That absence of snowfall was admittedly a little extreme and may not be repeated in 2024, but this world is clearly not the one I grew up in.

Taylor Swift, born 1989, doesn’t know what a normal year is like. She is literally a force of nature. The megastar has made headlines when her fans danced and stomped so hard to the loud music at her concert in Seattle that they produced a mild earthquake. But mother nature is angry and is more powerful still.

We are heating our world so rapidly and so extremely by burning coal, fossil gas and gasoline that even Swift herself is being overtaken by climate effects.

It has just been confirmed that Ana Clara Benevides Machado, 23, who attended Swift’s Eras Tour concert in Rio de Janeiro on November 17 died of heat exhaustion.

Rio that day was 102 F. (39C), but because of humidity it felt like 138.7 F. (59.3C). Scientists have discovered fairly recently that humans cannot survive very high “wet bulb” temperatures, where both the temperature and the humidity are unusually elevated. We cool down by sweating, and very high heat and humidity don’t allow sweating to have that cooling effect. So our brains boil.

Ms Swift herself seemed at some points during her conference to be gasping for breath. She had her staffers distribute water and threw out some bottles herself. She canceled her scheduled Nov. 18 follow-up concert because of the extreme heat and Ms. Machado’s death.

Page 6: “Taylor Swift struggles to breathe while performing during deadly Brazil Eras Tour”

Mid-November is the beginning of summer in the southern hemisphere, but even so you didn’t used to see over 100 degrees F. in Rio at that time. Things are changing, and not for the better. Latin America didn’t really have a spring this year, suffering heat domes with temperatures as high as 104 F. (40C) even in August and September. (I was once in Rio for a conference in July and it was cold and rainy.) Those elevated, unseasonable temperatures were made 100 times more likely by the climate crisis, reports Scientific American.

Rio was not alone in seeing anomalous temperatures in 2023.

In just one week of summer 2023, 20,000 air flights were affected by the extreme heat globally. Thunderstorms, cracked take-off lanes, and — if it gets to 117 degrees F. or higher, thin air — can all interfere with flights.

Some twenty southern and southwestern cities in the US experienced either unprecedentedly high temperatures or unprecedentedly long heat waves, or both. Phoenix hit 110 degrees F. on 54 days this summer. Dallas-Fort Worth was also hit by a heat dome, which extended down into Mexico.

Friends, we are doing this to ourselves, every day, all day. We are hitting golf balls in our bathrooms and are surprised when they boomerang on us. It won’t get better until we stop. That probably means we have to stop electing Republicans. At all. And we have to pressure even the Dems, constantly, to do the right thing. This thing is too big for us as individuals to solve it. We need government, and the Dem Inflation Reduction Act was a good start. More of that.

( Tomdispatch.com) – A recent opinion poll rocked the world of the Big Oil lobbyists in their proverbial thousand-dollar suits and alligator shoes. The Pew Research Center found that 37% of Americans now feel that fighting the climate crisis should be the number one priority of President Joe Biden and Congress, and another 34% put it among their highest priorities, even if they didn’t rank it first. Companies like ExxonMobil and countries like Saudi Arabia have tried since the 1990s to gaslight the public into thinking climate change was either a total fantasy or that the burning of coal, natural gas, and petroleum wasn’t causing it. Having lost that battle, the fossil-fuel lobbyists have now fallen back on Plan B. They want to convince you that Big Oil is itself swinging into action in a major way to transition to — yes! — green energy.

The hosting of the recent COP28 climate summit by the United Arab Emirates, one of the world’s leading petroleum exporters, exemplified exactly this puffery and, sadly enough, it’s just one instance of this greenwashing world of ours. Everywhere you look, you’ll note other versions, but it certainly was a classic example. Emirati businessman Sultan Ahmed al-Jaber served as president of the Dubai-based 28th Conference of Parties — countries that had signed onto the United Nations Framework Convention on Climate Change (UNFCCC) in Rio de Janeiro in 1992. While his green bona fides include his role as chairman of the board of the UAE’s green energy firm Masdar, controversy swirled around him because he’s also the CEO of ADNOC, the UAE’s national petroleum company. Worse yet, he’s committed to expanding the oil and gas production of his postage-stamp-sized nation of one million citizens (and eight million guest workers) in a big-time fashion. He wants ADNOC to increase its daily oil production from its present four million barrels a day to five million by 2027, even though climate scientists stress that global fossil-fuel production must be reduced by 3% annually through 2050 if the world is to avoid the most devastating consequences of climate change.

Embed from Getty Images
COP28 president Sultan Ahmed Al Jaber attends a plenary session during the United Nations climate summit in Dubai on December 13, 2023. Nearly 200 nations meeting in Dubai on December 13 approved a first-ever call for the world to transition away from fossil fuels, the top culprit of climate change behind a planetary crisis. (Photo by Giuseppe CACACE / AFP) (Photo by GIUSEPPE CACACE/AFP via Getty Images)

Meanwhile, since COP28 was held in the heart of the petroleum-producing Middle East, it also platformed bad actors like Saudi Arabia, which led the charge to stop the conference from committing to ending the use of fossil fuels by a specific date. The awarding of COP28 to the Emirates by the UNFCCC Secretariat allowed a whole country, perhaps a whole region, to be greenwashed, a genuinely shocking decision that ought to be investigated by the U.N.’s Office of Internal Oversight Services. (And next year, it looks like COP29 will be hosted by another significant oil producer. In other words, the oil countries seem to be on a hot streak!)

Imaginary Algae

Mind you, those Gulf oil states are anything but the only major greenwashers on this planet. After all, the private sector has outdone itself in this arena. A congressional investigation into the major oil companies produced a long report and an appendix that came out last year, including internal corporate emails showing repeated and systemic bad faith on the subject of climate change. ExxonMobil executives, for instance, had publicly committed their company to the goals of the 2015 Paris Agreement to keep the increase in the average surface temperature of the earth to no more than 1.5° Centigrade (2.7° Fahrenheit) above the pre-industrial era. Although a 1.5-degree increase might sound small, keep in mind that, as a global average, it includes the cold oceans of the higher latitudes, the North and South Poles, and the Himalayas. In already hot climates like South Asia and the Middle East, that means over time it might translate into a stunning 10- to 15-degree increase that could make some places literally unlivable.

Scientists worry that exceeding that level could throw the world’s climate system into full-scale chaos, producing mega-storms, substantial sea level rise, ravaging wildfires, and deadly heat and drought over large parts of the earth’s surface. Still, despite his public commitment to it in 2019, the CEO of ExxonMobil, Darren Woods, asked an oil industry lobbying group to delete a reference to the 2015 Paris climate agreement from the draft of a statement on sustainability it had prepared. That mention, Woods said, “could create a potential commitment to advocate on the Paris agreement goals.” So much for oil company pledges!

In a similar fashion, in 2020, executives of the London-based Shell PLC asked public relations employees to highlight that the company’s vow to reach zero net carbon emissions by 2050 was “a collective ambition for the world,” rather than a “Shell goal or target.” As a company executive admitted all too bluntly, “Shell has no immediate plans to move to a net-zero emissions portfolio over our investment horizon of 10-20 years.” (Oh, and in case you missed this, the profits of the major fossil-fuel outfits have in recent years gone through the roof.)

Buy the Book

Nor is corporate greenwashing simply a matter of public pronouncements by oil company executives. ExxonMobil has run a multi-million-dollar campaign of television and streaming advertising attempting to pull the wool over people’s eyes about what it’s doing. In one instance, it paid the New York Times to run an extended commercial gussied up as if it were a news article, a shameful procedure to which the Times acquiesced. Studies show that most readers miss disclaimers about such pieces actually being paid advertisements. It was entitled, “The Future of Energy? It may come from Where you Least Expect: How scientists are tapping algae and plant waste to fuel a sustainable energy future.” The advertisement was extremely misleading. As Chris Wells, an associate professor of emerging media studies at Boston University’s College of Communication, told BU Today last February, “Exxon is doing a lot of advertising around its investments in algae-based biofuels. But these technologies are not yet viable, and there is a lot of skepticism that they ever will be.”

In fact, about a month after Wells gave that interview, ExxonMobil admitted publicly that it had pulled out of algae biofuels research entirely at the end of 2022, having invested about $29 million a year over 12 years. It spent more millions, however, in advertising to give the public the impression that this paltry investment outweighed the company’s multi-billion-dollar efforts to bring ever more petroleum online.

The environmentalist group Client Earth notes that ExxonMobil spends between $20 billion and $25 billion annually looking for — yes, of course! — new oil fields and is committed to doing so through at least 2025. The company had a net profit of $55.7 billion in 2022. In other words, it’s still devoting nearly half of its annual profits to looking for more petroleum when, of course, it could be using them to launch its transition to sustainable forms of energy. Such — to put it politely — inertia is clearly unwise. New electric vehicle sales in the U.S. soared to about a million this year alone, and EVs will have avoided using 1.8 million barrels of oil in 2023. Better yet, the cost of battery packs for the vehicles fell 14% and is expected to keep heading down, guaranteeing that EVs will be ever more affordable over time. Moreover, in significant parts of the rest of the world, as the New York Times reported recently, electric-powered two- and three-wheeled vehicles are beginning to give the giant oil companies a run for their money. In the decades to come, ExxonMobil’s inflexibility and refusal to innovate will undoubtedly doom the company, but the question remains: In the process, will it doom the rest of us, too?

A Deceptive Greenwashing Marketing Campaign

In another, better world, the courts could punish the oil majors for their greenwashing. That misleading paid ad in the New York Times forms but one cornerstone of a wide-ranging lawsuit against ExxonMobil by the state of Massachusetts, initiated in 2019, which has so far survived that company’s legal challenges. As the office of Attorney General, Andrea Campbell explains, it is “alleging that the company violates Massachusetts law through a deceptive ‘greenwashing’ marketing campaign that misleadingly presents Exxon as a leader in cutting-edge clean energy research and climate action… and… its products as ‘green’ while the company is massively ramping up fossil fuel production and spending only about one-half of 1% of revenues on developing clean energy.” Campbell, an African-American born in Boston, is keenly aware that climate change is an equity issue, since its deleterious effects will initially be felt most strongly among the less privileged. (Of course, given our present Supreme Court, don’t hold your breath on this one.)

In its complaint, the state points to marketing campaigns like those featured on ExxonMobil’s YouTube channel, which still shows an ad produced eight years ago, “Making the World’s Energy go Further,” that, in just 30 seconds, presents a medley of greenwashing’s greatest early hits — algae biofuel, “new technology for capturing CO2 emissions,” and cars twice as efficient in their gas mileage. Algae biofuels, however, have by now bitten the dust; there is no affordable and safe method of capturing and storing carbon dioxide; and electric cars are between “2.6 to 4.8 times more efficient at traveling a mile compared to a gasoline internal combustion engine,” according to the Natural Resources Defense Council. 

The biggest fault in such commercials, however, is that the oil company’s ad makers were trying to convince the public that ExxonMobil was putting major resources into sustainable alternatives.  As the state of Massachusetts points out, in reality “ExxonMobil has ramped up production and reportedly is now the most active driller in the Permian Basin, the shale oil field located in western Texas and southeastern New Mexico that yields low-cost oil in months, rather than the years required for larger offshore projects to begin producing crude… ExxonMobil has invested billions of dollars into the development of massive Canadian oil sands projects, which are among the costliest and most polluting oil extraction projects in the world.”

Carbon Capture and Lake Nyos

An even more dangerous scam than algae biofuels (implausible but not life-threatening) is the idea of carbon capture and storage (CCS). Remind me: Why would we try to store billions of tons of a poisonous gas? On August 21, 1986, subterranean carbon dioxide deposits bubbled up through Lake Nyos in Cameroon, killing nearly 2,000 people, thousands of cattle and other animals, and in the process turned four local villages into graveyards. Some scientists fear similar underground carbon dioxide storage elsewhere could set off earthquakes. And what if such quakes in turn release the gas? Honestly, since I still remember the 1989 Exxon Valdez disaster where 11 million gallons of oil, spilled into the waters off Alaska, wrecked hundreds of miles of shoreline and killed unknown numbers of sea creatures and birds, I’d just as soon not have ExxonMobil store carbon dioxide in my neighborhood.

Worse yet, most of the CO2 harvested by oil companies so far has been injected into drill sites to help bring in — yes, you guessed it! — more petroleum. Worse yet, studies have shown that carbon-capture technology itself emits a lot of carbon dioxide, that it can only capture a fraction of the CO2 emitted by fossil fuels, and that just shutting down coal, fossil gas, and petroleum production and substituting wind, solar, hydro, and batteries is far safer, cheaper, and better for the environment. 

Carbon capture is, however, a favorite greenwashing tool of Big Oil, since company executives can pretend that a technological breakthrough somewhere on the horizon justifies continuing to spew out record quantities of CO2 in the present moment. Senator Joe Manchin (D-WV) wasted billions of taxpayer dollars by including provisions for CCS research and development in Joe Biden’s otherwise admirable Inflation Reduction Act. In the process, he managed to insert a key greenwashing technique into even the most progressive climate legislation ever passed by an industrialized hydrocarbon state.

As for Sultan Al-Jaber, the head of COP28, he let his mask slip in November in a testy exchange with former Irish President Mary Robinson, who had invited him to an online discussion of how women’s lives could be improved if the climate crisis were effectively addressed. When she urged him to act as president of COP28, he exploded: “I’m not in any way signing up to any discussion that is alarmist. There is no science out there, or no scenario out there, that says that the phase-out of fossil fuel is what’s going to achieve 1.5C.” He was pushing back against the goal advocated by scientists and many diplomats of quickly phasing hydrocarbons out. He claims to advocate phasing them down, not presumably eliminating them. He added, “Please help me, show me the roadmap for a phase-out of fossil fuel that will allow for sustainable socioeconomic development, unless you want to take the world back into caves.” Al-Jaber was posturing, since he surely knows that the International Energy Agency has issued just such a roadmap, which does indeed require rapid reductions in fossil fuel use. Oh, and if he has his way, it’s quite conceivable that, somewhere down the road, the capital city of the United Arab Emirates, Dubai, could become too hot to be livable.

“City of Salt,” by Juan Cole, Digital, Dream/ IbisPaint, 2023.

Given the plummeting cost of green energy, it’s clear that moving quickly and completely away from fossil fuels will improve the quality of life for people globally while making energy cheaper. In the end, COP28 could only issue an anodyne call for “transitioning away” from fossil fuels. Despite al-Jaber’s globe-straddling greenwashing at the climate summit, however, there is no realistic alternative to phasing fossil fuels not just down but out, and on an accelerated timeline, if our planet’s climate isn’t to turn into a Frankenstein’s monster. After all, 2023 has already proved a unique year for heat — with month after month of record-setting warmth across the globe. And sadly, as fossil-fuel production only continues to increase, that’s just the beginning, not the end, when it comes to potentially broiling this planet.

Admittedly, under the best of circumstances, this transition would be challenging and, according to the United Nations, will certainly require more investments than the countries of the world are now making, but it still appears eminently achievable. As for ExxonMobil and other oil majors, every day they resist investing their obscene profits in truly innovative green energy technology is a day they come closer to future financial ruin. In the meantime, they are, of course, wreaking historically unprecedented harm on the planet, as was all too apparent with the serial climate disasters of 2023, now believed to be the hottest of the last 125,000 years.

Copyright 2023 Juan Cole

Via Tomdispatch.com

( Clean Energy Wire ) – German industry is increasingly investing in climate protection measures, the Federal Statistical Office (Destatis) reported just before the UN Climate Change Conference (COP28), which kicked off on 30 November.

Climate protection investments in the manufacturing sector have increased by 74.3 percent over a decade. In 2021, manufacturers spent some 4.15 billion euros on systems to avoid emissions or use resources more sparingly, up from 2.38 billion in 2011. Legal regulations and government funding have contributed to the increase in investments, Destatis notes.

Nearly 50 percent of climate protection investments in 2021 — 2.04 billion euros [$2.22 bn.] — went to renewable energy sources, including wind turbines and photovoltaic systems.

Image by Melanie from Pixabay

Companies invested a further 1.63 billion euros ($1.77 bn) (39.2%) in increasing energy efficiency and energy saving, such as thermal insulation of buildings or systems with combined heat and power. The manufacturing and service sectors generated sales of 53 billion euros with climate protection products in 2021 – an 11.9 percent increase compared to the previous year.

The solar sector saw the biggest sales increase in 2021 with a 24 percent boost (920 million euros) for a total of 4.8 billion euros. From 2011 to 2021, sales of climate protection products – such a solar PV arrays and insulation – rose 16 percent. Nearly 55 percent of sales, or 28.6 billion euros, came from measures to increase energy efficiency in 2021.

Thermal insulation of buildings contributed substantially, generating almost 10.2 billion euros [$11.1 bn.] in sales, while the manufacture and installation of wind turbines resulted in revenue of 11.8 billion euros [$12.8 bn.].

Meanwhile, the number of employees in “green jobs,” increased by 44 percent between 2011 and 2021.

German development bank KfW recently reported that climate protection investments by domestic companies in 2022 rose by 18 percent in real terms to 72 billion euros [$78.4 bn.].

Published under a “ Creative Commons Attribution 4.0 International Licence (CC BY 4.0)” .