climate science31
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400 ppm World, Part 1: Large Changes Still to Come
Why should society care that CO2 is now as high as 400 ppm? The reasons are multiple, but all trace back to the relationship between CO2 and temperature.
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Climate Scientist, Volcanologist Elected to National Academy of Sciences
Mark Cane, an expert on the El Niño climate pattern, and Terry Plank, an authority on explosive volcanoes—both scientists at Columbia University’s Lamont-Doherty Earth Observatory–have been elected to the National Academy of Sciences. Membership in the National Academy, given for excellence in original scientific work, is one of the highest honors awarded to engineers and…
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‘Chasing Ice’: Watching History Unfold, and Disappear
Near the end of “Chasing Ice,” a hunk of glacier the size of lower Manhattan explodes, rolls and crashes into the sea. If that sounds like a spoiler, well, go see the movie and you’ll know you would have known it was coming anyway. And the beauty of the movie is that it will still…
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NASA’s Jim Hansen to Retire
James E. Hansen, director of NASA’s Goddard Institute for Space Studies (GISS) and an adjunct professor at Columbia University’s Earth Institute, has announced he will retire as director of GISS this week to devote more time to his campaign to cut global carbon emissions. “Jim Hansen is a one of the true giants of climate…
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Greenhouse Gases Like Steroids for Extreme Weather
The fourth seminar in the Earth Institute’s Sustainable Development Seminar Series, “Ch Ch Ch Changes – recent trends in temperature extremes and hydroclimate,” brought together experts in the fields of climate change and hydrology to discuss emerging trends in global weather events.
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IRI to develop climate adaptation tools to help farmers in South and Southeast Asia
A new two-year climate change initiative, led by the International Research Institute for Climate and Society aims to help farmers in Indonesia, the Lao People’s Democratic Republic and Bangladesh reduce their vulnerability to climate risks.
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Columbia University to Monitor NYC Waterways
Dr. Wade McGillis of Columbia University’s Lamont Doherty Earth Observatory is the Lead Principal Investigator on a new project entitled “NYC Sustainable Urban Water Quality: the Earthwatch Institute Freshwater Program”, set to take place through January 2017. Dr. McGillis and his staff will be working in partnership with the Earth Watch Institute to deliver this…
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Extreme Weather Adds Up to Troubling Future
Extreme weather and climate-related events already have cost the United States billions of dollars. A recent symposium focused on what we know about the causes and how changing climate affects agriculture, water supplies, wildlife and our economy.
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Rosario’s Farm: Rising Tides, Shrimp from the Forest
Rosario Costa-Cabral and her brothers harvest hundreds of fruits, oils and wood products from the stream-laced forest of the Amazon River delta. But the climate here is changing: Tides rise higher, and seasonal floods are growing worse.
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
