climate21
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Global Environment Report Card Sees Dirty Air, Failing Fisheries
Many countries are making progress on improving water sanitation and protecting marine ecosystems. But air pollution continues as a leading health problem in many nations, and fisheries are deteriorating almost everywhere.
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New Tracker Keeps Tabs on Government Attacks on Science
The Silencing Science Tracker, from Columbia’s Sabin Center for Climate Change Law and the Climate Science Legal Defense Fund, will log actions by the U.S. government to silence scientists working on environmental, public health and climate issues.
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In Continuation of Trend, 2017 Was Second Warmest Year on Record
Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880, according to an analysis by NASA released today.
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Rivers Predicted to Jump Banks More Often as World Warms
Rainfall changes caused by global warming will increase river flooding risks across the globe by the 2040s, says a new study.
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Humidity May Prove Breaking Point for Some Areas as Temperatures Rise, Says Study
A new study projects that in coming decades the effects of high humidity in many areas may surpass humans’ ability to work or, in some cases, even survive.
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Hotter Temperatures Will Accelerate Migration of Asylum-Seekers to Europe, Says Study
If carbon emissions hold steady, a new study in Science predicts that the European Union could face a massive influx by 2100.
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Tiny Losses of Ice at Antarctica’s Fringes May Hasten Declines in Interior
A new study shows that even minor deterioration of ice shelves can instantaneously hasten the decline of ice hundreds of miles landward.
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The Greenland Ice Sheet Is Sponging Up Meltwater
As climate warms, the surface of the Greenland ice sheet is melting, and all that meltwater ends up in seasonal rivers that flow to the sea. At least that is what scientists have assumed until now. A new study has shown that some of the meltwater is actually being soaked into porous subsurface ice and…
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American Geophysical Union 2017: Key Events From the Earth Institute
A chronological guide to key talks and other events presented by Columbia University’s Earth Institute at the American Geophysical Union 2017 meeting.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
