Can Cities Be Sustainable?
Urban growth poses big challenges in the 21st century
Stories by Pola Lem
Could a Lack of Water Cause Wars?
Water scarcity poses a greater risk of turmoil under global warming, the World Bank argues
Water Shortage May Cripple Global Power Supply
Nearly all the power produced around the world depends on steady water supplies, which are imperiled by overuse and a changing climate
Darker Ice Causes Greenland to Melt Faster
Warmer air leads to larger ice grains and more absorption of sunlight
Just 1 Word for Maine's Future: Seaweed
Lobstermen are rushing to cultivate kelp as U.S. demand outstrips supply
