A new study co-authored by Anders Levermann of Columbia's Lamont-Doherty Earth Observatory shows that even minor deterioration of ice shelves can instantaneously hasten the decline of ice hundreds of miles landward.

A new study has shown that some of Greenland's meltwater is actually being soaked into porous subsurface ice and held there, at least temporarily. The research could alter calculations of how ongoing melting might fuel global sea-level rise.

Pratigya Polissar, an organic geochemist at Lamont-Doherty Earth Observatory and a Center for Climate and Life Fellow, is developing new tools to look at the history of plants and ecosystems on Earth over the past 20 million years.

A plankton-like species is attacking the base of the food chain in the Arabian sea, disrupting water quality and killing fish. Researchers at Columbia's Lamont-Doherty Earth Observatory are learning how to fight back.

A new study co-authored by Columbia climate scientist Maureen Raymo calculates that if we eat half as many burgers and steaks each week, it could have a profound effect on carbon emissions and the environment.