Incoming president Donald Trump’s climate change denial has environmentalists worried. But California is proving that local efforts can achieve real progress – independent of Washington.
Ten years of effort finally paid off for Las Vegas. The city government has gone entirely green, and 200 more cities want to do the same.
Cahokia was bigger than Paris—then it was completely abandoned. I went there to find out why.
Impact of dams on climate change has been underestimated, researchers warn, as rotting vegetation creates 25% more methane than previously thought
Tesla’s new line of energy-harvesting roof tiles are a key part of Elon Musk’s plan to make solar sexy.