Columbia University

Clock Is ticking in West Antarctic

Reports that a portion of the West Antarctic Ice Sheet has begun to irretrievably collapse, threatening a 4-foot rise in sea levels over the next couple of centuries, surged through the news media last week. ...

May 26, 2014
4.1 / 5 (14) 5

Southwest headed for permanent drought

(PhysOrg.com) -- The American Southwest has seen naturally induced dry spells throughout the past, but now human-induced global warming could push the region into a permanent drought in the coming decades, ...

Jan 31, 2011
3.6 / 5 (15) 9

Heat-related deaths in Manhattan projected to rise

Residents of Manhattan will not just sweat harder from rising temperatures in the future, says a new study; many may die. Researchers say deaths linked to warming climate may rise some 20 percent by the 2020s, ...

May 19, 2013
3.9 / 5 (14) 15 | with audio podcast

When the Sahara turned to sand

The Sahara wasn't always a desert. Trees and grasslands dominated the landscape from roughly 10,000 years ago to 5,000 years ago. Then, abruptly, the climate changed, and north Africa began to dry out.

Nov 11, 2013
4.4 / 5 (12) 4

Tree rings open door on 1100 years of El Nino

(PhysOrg.com) -- El Nino and La Nina, the periodic shifts in Pacific Ocean temperatures, affect weather around the globe, and many scientists have speculated that a warming planet will make those fluctuations ...

May 27, 2011
4 / 5 (13) 11 | with audio podcast

Climate change or public health: Which matters more?

Political leanings unquestionably influence how many people hear the conversation over climate change. The political polarization of the discussion has made it difficult to reach agreement on changes in environmental ...

Aug 04, 2014
3.3 / 5 (15) 9