climate42
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China’s South-North Water Transfer Project: A Means to a Political End
In order to maintain the status quo, let alone to grow, cities like Beijing, Tianjin, Shijiazhuang and Zhengzhou need more water. But the South-North Water Transfer Project–which when completed will transfer 174 times more water per year than the city of Los Angeles receives from various diversions of the Colorado River– is putting in place…
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EPA’s greenhouse gas rule poses challenges for US policy review process
Just in case anyone you missed it, the US Environmental Protection Agency (EPA) is moving, albeit almost imperceptibly, toward regulating greenhouse gas (GHG) emissions. It took one more step in January, published the emissions of 6700 facilities with annual emissions of more than 25,000 MtCO2e. This category of emitters was required to report these figures…
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Fixing Climate: Beyond Carbon Dioxide
Climate scientists at a meeting of the American Association for the Advancement of Science this week were elated to hear that the United States and five other countries had agreed to work toward cutting pollutants other than carbon dioxide thought to cause about a third of current human-influenced global warming. After all, many of them…
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A Climate Tipping Point for World Food Prices?
Increased growing-season heat due to climate change in coming decades could push staple U.S. crops off a cliff, and cause world food prices to jump, a Columbia University economist told a press briefing at a top scientific meeting this week. In a panel organized by the American Association for the Advancement of Science, economist Wolfram…
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Did the Oceans Influence Human Evolution?
Scientists often invoke climate as a possible factor in human evolution; but only recently have they developed the ability to get enough information about past climates and related fossil evidence to see any details. A half-dozen leading paleontologists and climate scientists discussed recent advances in a symposium this week at the annual meeting of the…
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Global Climate Modeling for the Masses: You Can Try This at Home
Since 2005, the Educational Global Climate Modeling Project has been downloaded 50,000 times, and adopted for teaching and research at hundreds of universities and other institutions.
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Climate News Roundup: Week of 2/6
Three States to Require Insurers to Disclose Climate-Change Response Plans, New York Times 2/2 California, New York and Washington have announced a new requirement for insurance companies to disclose their plans for responding to climate change risks. The new regulation expands a requirement already in place for the largest insurers in those states. While insurance companies…
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Scientists Drill 2 Miles Down to Ancient Lake Vostok
Russian scientists this week finished penetrating more than two miles through the Antarctic ice sheet to Lake Vostok, a huge freshwater lake that has been buried under the ice for millions of years. But they won’t know what they’ve found until next year.
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East Africa Drought Is “Exceptional”
Climate scientist Simon Mason talks about the drought and the role of climate information in disaster preparedness and response.
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
