Columbia University

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

Making progress on deforestation

In 2005, Brazil was losing more forest each year than any other country. The good news is that today, Brazil has reduced deforestation in the Amazon rainforest by 70 percent, according to a recent study. ...

Jun 24, 2014 4 / 5 (1) 0

A natural wonder rediscovered

(PhysOrg.com) -- Scientists using underwater sensors to explore Lake Rotomahana in New Zealand have uncovered remnants of the Pink Terraces,” once considered the eighth natural wonder of the world.

Feb 23, 2011 5 / 5 (7) 0