Video: Jon Stewart on the water crisis
July 17, 2009, 11:08 a.m.
Jon Stewart interviews the author of 'Unquenchable: America's Water Crisis and What to Do About It'.
As Las Vegas spreads into the desert, water gets even more scarce
June 24, 2009, 2:08 p.m. by S.A. Rogers
NASA photos reveal 25 years of explosive growth, but it comes at a price.
This map tells you exactly what lies on the other side of the ocean
'Super mom' spotted on a Minnesota lake — with 56 ducklings in tow
It's time to stop releasing balloons
'Signing Day' recognizes high school seniors starting jobs, not college
Fireflies! 12 things you didn't know about lightning bugs
5 brilliant mathematicians and their impact on the modern world