Climate226
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Riding for Change: MSSM Student Rides 300 Miles to Raise Awareness about Sustainability Issues
MS in Sustainability Management student Scott Miller rides 300 miles from New York to Washington, D.C., to raise awareness about sustainability issues and promote support for Earth Institute research and projects.
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Exploring the Bering Sea Ecosystem
Our stations have continued to be rich in phytoplankton, while our colleagues are excited by the larval fish they are finding in the southern Bering Sea. Wildlife sightings have included whales, dolphin, and the jawless lamprey fish, and we are settling in for potentially bumpy seas ahead.
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Switchyard 2012: Climate Change in the Arctic
Arctic summer sea ice is declining rapidly: a trend with enormous implications for global weather and climate. Now in its eighth year, the multi-year Arctic Switchyard project is tracking the Arctic seascape to distinguish the effects of natural climate variability from human-induced climate change. The University of Washington is leading the project. A) The Canadian…
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Experiments May Understate Plant Responses to Climate
Observations in Nature Outrun Those in Artificial Plots
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The Double-Edged Sword of Geoengineering
Shooting sulfur particles into the stratosphere to reflect the sun? Dumping iron into the ocean to boost the absorption of carbon dioxide? Could these far-fetched and dangerous-sounding schemes—geoengineering—help avert potentially catastrophic effects of climate change, or would they exacerbate conditions on our ever warming planet?
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World Climate Policies: Substantial Progress But Enormous Challenges Remain
Recent analysis by Deutsche Bank Climate Change Advisory (DBCCA) in conjunction with the Columbia Climate Center, shows that the existing world climate policies have the potential to substantially reduce CO2 emissions, but are not aggressive enough to meet the suggested 450 ppm stabilization pathways.
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Why I Care About the Bottom of the Ocean
It is the middle of the night and I am wide awake thinking about the ocean, specifically the bottom of the ocean. Is it rocky? Jumbled? Smooth? Rocky is bad. Jumbled is bad. Smooth is good.
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Warming and the Water Cycle: More than Just a Faster Wetter Wet and Drier Dry
One of the most serious consequences of global warming is its predicted impact on the water cycle. A new study, described below, presents evidence that the global water cycle is changing even faster than predicted. A further concern is that future rainfall patterns may be extremely variable in both space and time. As the atmosphere…
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Fossil Teeth, Traces of Climate & Evolution
From fossil teeth to carbon traces of plants in the soil, scientists are studying how changes in climate may have influenced early human evolution in Africa. Researchers from around the world gathered for a symposium held recently at the Lamont-Doherty Earth Observatory. Watch the videos.
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
