Antarctica3
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Weddell Seal Population May Be Much Lower Than Previously Thought
High-resolution satellite images allowed researchers to do a more comprehensive head count than ever before, and revealed patterns in the seals’ distribution.
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Marco Tedesco: Snow Man
Although his parents wanted him to become an electrical engineer, Tedesco felt drawn to a life of research. Then he fell in love with snow. Now he is among the most well-respected and quoted polar experts in the world.
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Crucial Antarctic Glacier Likely to Collapse Much Earlier than Expected
Thwaites Glacier, dubbed Antarctica’s ‘doomsday glacier,’ has been predicted to undergo dramatic changes, with its ice shelf likely to break apart in as little as five years.
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Study of West Antarctica’s Deep Past Reinforces Vulnerability to Melting
The continent’s western ice sheet turns out to once have been much bigger than previously thought. This implies that the now smaller version could waste quickly.
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International Team to Drill Deep Through Antarctic Ice Into Ancient Sediments
The research project, dubbed SWAIS 2C, will investigate the sensitivity of the West Antarctic Ice Sheet to global warming of 2 degrees Centigrade.
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Scientists Track the Sudden Disappearance of an Antarctic Ice-Shelf Lake
A rarely seen phenomenon may not bode well for the future survival of the ice.
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Sidney Hemming, Paleoclimate Detective, Wins Guggenheim Fellowship
A Q&A with the geochemist, who plans to investigate a key climate interval millions of years ago.
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How Climate Change Is Affecting Sea Squirts In Antarctica
As melting glaciers alter ecosystems in and around Antarctica, scientists study how sea squirts react.
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Far-Drifting Antarctic Icebergs Are Trigger of Ice Ages, Scientists Say
Large numbers of icebergs that drifted unusually far from Antarctica before melting into ocean waters have been key to initiating ice ages of the past, says a new study.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
