Climate Change

Mar 17

Watch 5:55
Uncovering the history of Earth’s climate

To understand the history of climate change, researchers are digging underneath the ocean floor where organisms and plants have accumulated in sediment over millennia. Maureen Raymo studies this science of paleoclimatology using a vast collection of materials at Columbia University’s…

Feb 25

Will the West’s ‘Great River’ run dry?

As the Southwest faces rapid growth and unrelenting drought, the Colorado River is in crisis. Now those who depend on the river must confront the hard reality that their supply of Colorado water may be cut off.