Global sea level rise since 1880.
With drought, increasing water consumption, and climate change, the Colorado River Basin Ã¢Â€Â” lifeblood of the Southwest Ã¢Â€Â” appears headed for a day of reckoning.
Massive floods struck three countries this week: Australia, Brazil, and Sri Lanka
Glen MacDonald, of UCLA, talks about the threat of drought in the Southwest and what it means for water supply.
Lake Mead is at a record low level, a stark symbol of increased water demand and a stubborn drought in the West. Will conditions persist and the reservoir sink farther? Scientist David McGee reveals how he looks for the answers by studying past dry spells.