climate25
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Water Is Streaming Across Antarctica
In the first such continent-wide survey, scientists have found extensive drainages of meltwater flowing over parts of Antarctica’s ice during the brief summer. Many of the newly mapped drainages are not new, but the fact they exist at all is significant; they appear to proliferate with small upswings in temperature, so warming projected for this…
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Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface
Up to now, it has been a mystery why much of the fresh water resulting from the melting of Antarctic ice shelves ends up in the depths instead of floating above saltier, denser ocean waters. Scientists working along one major ice shelf believe they have found the answer.
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Tracking the Undoing of Climate-Change Measures
The Sabin Center for Climate Change Law is launching a new tool to identify and explain the efforts taken by the incoming administration to scale back or wholly eliminate federal climate change mitigation and adaptation measures.
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Green Sahara’s Ancient Rainfall Regime Revealed
Rainfall patterns in the Sahara during the six-thousand-year “Green Sahara” period have been revealed by analyzing marine sediments, according to new research.
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James Hansen Honored for Pioneering Work in Climate Change Modeling
James Hansen, director of the Program on Climate Science, Awareness and Solutions at the Earth Institute and former director of the NASA Goddard Institute for Space Studies, is being honored with the BBVA Foundation Frontiers of Knowledge Award in Climate Change.
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Earth Institute Spring 2017 Internships
This spring, The Earth Institute is offering students opportunities to work as interns within various departments and research centers at the institute. All full-time Columbia and Barnard students are eligible to apply.
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Photo Essay: Where the Trees Meet the Tundra
Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.
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Where Trees Meet Tundra, Decoding Signals of Climate Change
In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…
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Building Consensus on Climate and Sustainability Policy
The New York Times reported on a new international agreement that will phase out hydrofluorocarbons, or HFCs, a chemical that is used in refrigerators and air conditioners that is a powerful greenhouse gas. The irony is that HFCs were developed to replace chlorofluorocarbons, or CFCs, chemicals that caused a hole in our atmosphere’s ozone layer…
By studying thousands of buildings and analyzing their electricity use, Columbia Climate School Dean Alexis Abramson has been able to uncover ways to significantly cut energy consumption and emissions. Watch the Video: “Engineering a Cooler Future Through Smarter Buildings“
