climate change21
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Multiform Floods: A Growing Climate Threat
When different types of floods occur in close succession or simultaneously, the challenges to communities can be immense.
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An Interview With ‘Hila the Killa,’ Eco-Rapper and Climate Clown
The popular TikTok edutainer shares her thoughts on how creativity and fun can contribute to climate change solutions.
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Columbia Climate School Named University Partner for Climate Week NYC 2022
Experts from Columbia Climate School will join events bringing together voices from business, government, and civil society for the biggest climate event on earth.
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Landmark Climate Change Lawsuit Moves Forward as German Judges Arrive in Peru
An Indigenous Peruvian farmer is suing one of Europe’s largest CO2 emitters, the German energy firm RWE AG, for the costs of protecting his town from flooding. The case is progressing again after delays from COVID-19, and court-appointed experts are evaluating the risk posed by the glacial lake.
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During Low-Ice Seasons, Some Polar Bears Are Turning to Glacier Ice
As warming temperatures melt Arctic sea ice, glaciers act as supplemental habitat for a group of southeast Greenland polar bears looking to hunt during the low-ice season.
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Global Review Assesses Hydropower’s Vulnerability to Climate Change
A new study analyzes the impacts of climate change and variations in water availability on the hydropower sector, a key source of cost-effective renewable energy for many countries around the world.
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It’s Essential to Act on Climate Emergencies, But a Mistake for Biden to Declare One
It’s important to clarify what a “climate emergency” means and then pursue actions.
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Unraveling the Interconnections Between Air Pollutants and Climate Change
Getting rid of some air pollutants might aggravate global warming. Here’s how.
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‘Make Scientists Artists Again:’ Photographer Ian van Coller on Reimagining Glacier Retreat
His new book reinterprets photographs from a 2016 expedition to Kilimanjaro’s glaciers, looks at the relationship between art and science, and documents loss caused by climate change.
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
