As a scientist, Sean Solomon has studied Mercury, Venus and Mars. Now he heads Columbia’s Lamont-Doherty Earth Observatory, whose researchers study planet Earth, from its deepest ocean to its highest peak.
When scientists talk about climate change, they usually mean significant changes in the measures of climate over several decades or longer. Climate variability generally refers to seasonal changes over a year or so.
As the average local temperature continues to rise, climate change is a major topic on campus this summer. It is the focus of the Hertog Global Strategy Initiative, an annual interdisciplinary program that uses historical analysis to examine problems in world politics.
Researchers at Columbia Engineering and Georgia Institute of Technology have published a study in the February 4 online Early Edition of Proceedings of the National Academy of Sciences (PNAS) showing—for the first time—that certain volatile organic gases can promote cloud formati
The National Oceanic and Atmospheric Administration officially designated 2012 as the warmest year on record for the contiguous United States. This isn't too surprising for a year that already had the warmest spring, the second warmest summer and fourth warmest winter.
An American atmospheric chemist who led efforts to identify the cause of the Antarctic ozone hole and a French geochemist who extracted the longest-yet climate record from polar ice cores have won the prestigious 2012 Vetlesen Prize.
Columbia’s campuses were largely spared the ravages of Hurricane Sandy, which destroyed neighborhoods, flooded tunnels, forced hospitals evacuations and knocked out power to millions throughout the region. But many in the tri-state area face a challenging path to recovery.