climate change103
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Scouring Arctic for Traces of Fukushima and Cosmic Rays
Sounds like the basis for a great scifi thriller…”scientists scour Arctic, hunting for traces of nuclear fallout and ejections from cosmic ray impacts”. In reality this thriller theme is the actual core of the GEOTRACES mission.
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Public Health and Climate Change in the Gulf Region
The U.S. Gulf Coast has already felt the lasting effects of extreme weather on public health and infrastructure, and a new study says things could get worse with climate change.
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Warming Climate Is Deepening California Drought
Scientists Say Increasing Heat Drives Moisture from Ground
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Learning from a River’s History to Prepare for the Future
Researchers from eight universities, including Columbia University, are using tree ring and glacier analysis to reconstruct the climate history of the Missouri River Basin in order to give policymakers and water managers better decision-making tools to manage the river.
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Hillary Clinton Is Right on Climate Change and the New York Times Is Wrong
I would argue that given human behavior and organizational inertia it is better to subsidize something new than tax something old. A subsidy, like a sale, sometimes stimulates changed behavior. But a tax may or may not influence behavior.
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What the World Thinks of Climate Change
We all know that climate change can generate great debate in the United States. But what about the rest of the world?
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A Dire Warning on Rapid Climate Change
Sea level rise from melting ice sheets in Antarctica and Greenland threatens catastrophe for coastal cities within decades unless strong measures are taken to reduce CO2 emissions from the use of fossil fuels, argues climate scientist James Hansen.
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Spontaneous Clumping of Tropical Clouds
If you take a look at nearly any satellite image of clouds in the tropics, you’ll notice that the clouds tend to be organized into clusters. One specific type of cloud organization called “self-aggregation.” Self-aggregation is the tendency of tropical clouds to spontaneously clump together, solely due to interactions between the clouds and the surrounding…
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How Genomics Can Help Famine-Prone Nations Weather Climate Change
A team of biologists and agronomists has identified genomic signatures in plants indicating they are resilient to stresses such as drought or toxic soils. The multi-year study, expected to help developing-world farmers, was done with sorghum, one of the world’s most common crops.

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
