Columbia University

Tackling an Ice Age mystery

In the northern hemisphere, ice sheets ebb and flow in 100,000-year cycles, driven by varying amounts of sunlight falling on Earth's surface as its orbit and orientation toward the sun changes. But astronomical variations ...

Sep 05, 2013 4.8 / 5 (5) 0

The dinosaurs' demise up close

Tourists flock to Italy to see Michelangelo's David and other iconic hunks of Renaissance stone, but in a trip over spring break, a group of Columbia students got to visit rocks that have shaped the world ...

Feb 07, 2014 4.8 / 5 (5) 0

New technique measures evaporation globally

Researchers at Columbia Engineering and Boston University have developed the first method to map evaporation globally using weather stations, which will help scientists evaluate water resource management, assess recent trends ...

Apr 11, 2013 3.7 / 5 (6) 1 | with audio podcast