Solar-powered water purification systems sold to Algeria, Malaysia: will they catch on?

The one word that leaped out of President Obama’s State of the Union address was — surprise! — “salmon.” It got a laugh for the Commander in Chief, but, this being Washington, it didn’t stop there.

The environment has long been a key area of focus for delegates at the World Economic Forum. This year will be no different with the meeting at Davos taking place only a month after the UN Climate…

The Chinese flags are disappearing from Washington’s wide avenues after China’s President Hu Jintao’s visit, but one statistic is still in the air: the size of the Chinese ecological footprint,…

Greenland’s ice sheet melted at a record rate in 2010, and this could be a major contributor to sea level rise in coming decades.

The latest chapter of panda diplomacy was written at the National Zoo, where the Chinese government agreed to lengthen the “loan” of popular panda pair Mei Xiang and Tian Tian for another five years….

Feeling hungry? Maybe that’s because of all the news, from around the world, about food today — how much people produce, how much more they need, how much it’s going to cost, how much of an effect…

The great thing about presidential commissions is that they can soberly consider complicated matters and then offer unvarnished reports on what to do. The tough part is when that information rockets…

The push to develop solar power as an alternative energy source has hit an unlikely snag: environmentalists.