Global Warming23
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Connecting the Dots: Extreme Weather and Climate Change
Professor Ben Orlove, anthropologist and co-director of the Earth Institute’s Center for Research on Environmental Decisions discusses the connection between extreme weather and global warming, and public perception of climate change.
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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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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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From Sendai to Rio: A Call for Action
The people living on the northeast coast of Japan had learned to expect large earthquakes. But despite being one of the best-prepared nations, they were caught off-guard by the force of the March 11, 2011, earthquake and tsunami that devastated their coastline and led to the meltdown of reactors at the Fukushima nuclear power plant.
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Save those Acorns for the Apocalypse
As biodiversity takes a hit from climate change, forward thinking groups store seed samples in gene banks. The idea: if an entire species is wiped out, scientists can repopulate from the samples. Hello, plant versions of Adam and Eve.
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Composter Puts College Food Waste in Its Place
Columbia has welcomed a composting machine to campus, a first at a New York City university. Accepting food scraps, such as banana peels, coffee grounds and egg shells, the composter will provide a way to recycle the urban campus’s food waste while also serving as an educational tool.
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New Study Lowers Estimate of Ancient Sea-Level Rise
But Projections for Increase Today Still Loom Large

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

