Sustainable planned communities are not just the territory of the political left.
At first greens and urbanists were skeptical of the Republican from Illinois, but now they're sorry to see him go.
Read our definitive take on the non-definitive debate about the booming global quinoa market.
Cities can help solve climate change, but a new study finds that urban areas are also contributing to climate disruption in an unexpected way.
Anti-tar-sands activists joined in Idle No More protests around the globe today. But Keystone blockaders in Texas suffered a big blow in court.
The Virginia Senate has passed a bill making it illegal to recklessly fling a car door open into traffic. But do such laws make any difference?
To study activism, the filmmakers didn't go to protests -- they foraged weeds from dumpsters.
Fish McBites and Filet-O-Fish sandwiches are getting a stamp of approval from the Marine Stewardship Council, but they're not exactly green eats.
In areas where trees are being killed by beetles, more people are dying from cardiovascular and respiratory disease, according to new research.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.