By next year, nearly half of global GDP will be covered by cap-and-trade programs.
Sit-ins make the moral case for universities to dump their fossil fuel investments, but the collapse of oil prices adds a push from the invisible hand.
Drake is one of the most successful image makeover stories in hip-hop.
It's so warm that the park's famous grizzlies are coming out of hibernation earlier than ever before.
The state supreme court ruled that Mississippi Power "exceeded its authority" when it raised electricity rates for 186,000 households to fund a controversial, $6.17 billion power plant.
When it comes to drought in the West, we ain’t seen nothin’ yet.
The U.S. isn't as bad as you'd think …
States are charged with implementing Obama's carbon rule for power plants. Which ones will cooperate and which ones won't?
Community land trusts can guarantee a level of economic diversity in urban neighborhoods, and help locals take charge of their own destiny.