Scientists are working to prevent permafrost from thawing and releasing more greenhouse gases into the air. Climate scientist Peter de Menocal, Columbia University Dean of Science, explains how.

The history of the Antarctic Ice Sheet is recorded in its icebergs. A team of scientists co-led by climate scientist Maureen Raymo has set out to learn how the continent changed in the past and how it might react to warmer temps in the future.

A wellspring of transformative ideas, Wallace Broecker, a ground-breaking climate scientist who worked at Columbia's Lamont-Doherty Earth Observatory for 67 years, inspired generations of researchers to think expansively about Earth.

A study co-authored by Laia Andreu-Hayles, a tree-ring scientist at Columbia's Lamont-Doherty Earth Observatory, reveals how the wooden cores collected from trees could help us better understand climate change.

To understand the history of climate change, paleoclimatologist Maureen Raymo uses a vast collection of materials at Columbia University’s Lamont-Doherty Earth Observatory.

The impacts of this rain on the ice sheet extend beyond the moment drops are falling, says study co-author Marco Tedesco of Columbia University. Rain clouds linger, trapping the warm air they rode in on like a blanket, driving increased melting for days after the rain subsides.

“Whether this is climate change or not, what all the studies have shown is that this particular part of the U.S. has been having more tornado activity and more tornado outbreaks than it has had in decades before,” said Mike Tippett, a Columbia University applied mathematician who studies