Computer models combined with 1,000 years of climate data indicate that greenhouse gases will bring severe droughts to the Southwest and Central Plains by the end of the century.
Climatologist Chris Funk explains his findings that long-term ocean warming has created a chain reaction that is likely to permanently dry out East Africa.
On The 25th anniversary of the book "Cadillac Desert," we look at the work of an earlier Cassandra of Western water shortages, explorer John Wesley Powell.
NASA research scientist Benjamin Cook explains how the Dust Bowl years of the American Midwest were not entirely a "natural disaster" and how lessons learned then prevented a sequel.