Ice Melt

Ann Arbor (Informed Comment) – The UN’s World Meteorological Organization has issued its annual report. As you will have guessed, things don’t look good. There were 117 heat waves in 2022 and 58 droughts globally. But there were also 61 wet spells and 63 floods. We are rushing toward weather extremes. Global heating has driven […]

Antarctica

Antarctica’s Heart of Ice has skipped a Beat. The only Medicine is Halting Fossil Fuels

The Conversation

By Edward Doddridge, University of Tasmania | – (The Conversation) – The rhythmic expansion and contraction of Antarctic sea ice is like a heartbeat. But lately, there’s been a skip in the beat. During each of the last two summers, the ice around Antarctica has retreated farther than ever before. And just as a change […]

Climate Crisis

America’s Climate Refugees are Swelling, driven by Rising Seas, Wildfires and Extreme Heat

Sustainability Times

By Laureen Fagan ( Sustainability Times) – News of an accelerating sea level rise along the Gulf Coast of the United States has renewed attention on climate migration, and the degree to which people in the U.S. have begun to retreat from climate challenges due to flooding, wildfire and other impacts. The new study, […]

Antarctica

New Research shows how rapidly Ice Sheets can Retreat: Antarctica’s Melt alone could raise Sea Level 171 Feet

The Conversation

By Christine Batchelor, Newcastle University and Frazer Christie, University of Cambridge | – The Antarctic Ice Sheet, which covers an area greater than the US and Mexico combined, holds enough water to raise global sea level by more than 57 metres if melted completely. This would flood hundreds of cities worldwide. And evidence suggests it […]

Climate Crisis

The last Time there was this much CO2, there were Sabertooth Tigers, California Monsoons and an Undersea Florida

Juan Cole

Ann Arbor (Informed Comment) – – The National Oceanic and Atmospheric Administration reports that for the 11th consecutive year, human-caused emissions of carbon dioxide and other greenhouse gases increased at the same rate as has been common for the past decade. In other words, nothing the world has so far done has caused the rate […]

Antarctica

The Antarctic Ice Sheet is Melting. And this is bad News for Humanity

The Conversation

By Marta Moreno Ibáñez, Université du Québec à Montréal (UQAM) | – (The Conversation) – Ottawa’s famous Rideau Canal, which turns into the world’s largest ice rink every winter, is too thin to open this winter. Antarctic sea ice concentration reached a record low on Feb. 13. The orange line represents the median sea ice […]

Antarctica

Arctic and Antarctic Ice Sheets in Danger if we blow Past Paris Limit of 1.5° C. (2.7° F) extra Heating

Juan Cole

Ann Arbor (Informed Comment) – Jun-Young Park et al. write in Nature Communications that the collapse of the Arctic and Antarctic ice sheets may come sooner than climate scientists had expected if humanity misses the Paris Climate Treaty goal of keeping extra global heating to 2.7° F. (1.5° C ) above the pre-industrial average. Humanity […]

Antarctica

Do we Have Until 2050 to become Carbon Neutral? What if 27 Climate Feedback Loops are Working together to Shorten our Deadline?

Juan Cole

Ann Arbor (Informed Comment) – Feedback loops are central notions in science. There are two kinds, negative and positive. Negative feedback loops, despite their name, are actually good if you are looking for stability. So for instance say you are too hot, so you sweat. The sweat evaporates, cooling you off. In fact, it could […]

Antarctica

More Evidence that the Massive Thwaites Glacier is Melting Fast, Threatening the world’s Coasts

Juan Cole

Ann Arbor (Informed Comment) – The Thwaites Glacier in Antarctica is in the news again. We are fascinated with it because it is the Godzilla of glaciers, 80 miles across and as massive as Florida. If the ice sheet holding it back were to melt, and if Thwaites plopped into the ocean, it would all […]