A mere nine others have plans in the works, according to a new study.
We're 20 years away from catastrophe, says PricewaterhouseCoopers.
The world's biggest polluter will set up a carbon market by 2016. Here's why it matters.
The golden state's historic drought is forcing residents to reconsider the "yuck factor" of wastewater re-use.
Apple has a wide-ranging plan to keep its ever-expanding empire green—but it has a few holes.
Food giant General Mills now has some pretty sweet eco-bragging rights.
You’ve seen their logos on the sidelines, now get a peek inside the company trying to transform the world.
The deadly virus has already claimed almost 500 lives across West Africa this year, and deforestation could cause that number to keep climbing.
Calling all swimmers! Here's how to coexist with our gelatinous friends.
America's aging gas network is big and getting bigger. Why that could be bad for you and the climate.
The state is facing what could be its worst water-shortage in four decades.
A train tour through China's coal country, where every bit of the shadowy landscape has been pressed into the service of power generation.
Here's why, explained in 90 seconds.
Climb aboard NASA's biggest flying laboratory to discover the climate change secrets of clouds.
Higher temperatures, prolonged drought, and fire suppression policy combine to make fires worse.
Among them: postcard-perfect lighthouses, parks, and seaside city blocks.
What the nation's first wide-ranging strategy for tackling climate change will look like.
The movement's storm relief team still hasn't disbursed all the money it raised to help one of New York City's hardest hit neighborhoods.
Rising seas and increasingly severe weather could drastically increase the costs of floods in the United States.