The hockey league's first sustainability report underscores the threat global warming poses to the outdoor roots of the game.
Is Beijing suddenly getting on board in the fight against global warming?
But now the question is: Will it survive 2016?
The new rules would clean up the energy sector by 2030, but have sparked bipartisan outrage already.
The Obama administration's ambitious new clean energy policy has the coal industry on the warpath.
Climate change threatens American security, military brass say, and Congress is AWOL on the issue.
President Obama is calling for a war on climate change. Too bad he doesn't have the tools to win it.
The latest U.N. report says that the darling climate strategy isn't working. But that doesn't mean it's dead. For climate advocates, those are fighting words.
Developing nations are now the world's biggest polluters. Are they finally ready to help fight climate change?
Can anyone de-wonkify climate change warnings and actually get people to listen?
Why the glacial pace of climate diplomacy isn't ruining the planet.
How a $50 million graft scandal is pushing Malawi even closer to environmental catastrophe.
From a U.S. attack on Syria to the collapse of the Eurozone, here's what didn't happen in foreign policy this year.
Europe wants to replicate America's shale gas boom. Will it succeed?
7 far-out geoengineering ideas that could save the planet -- or destroy it trying.
The United Nations is vowing to end extreme poverty within our lifetimes. Here's why that might actually be realistic.
As the Arctic becomes an arena for conflict, the United States’ forgotten naval force will need to cowboy up.
How an ex-British prime minister’s sister-in-law, a headhunter’s grandson, dodgy PR firms, and a Malaysian kingpin are colliding in a fight over the future of democracy.
At a new center in Cambridge, a philosopher, an astronomer, and a software pioneer are looking for ways to save humanity from itself.
It's not just Obama -- the entire world is ready to get serious about climate change.
Five unlikely but extremely destabilizing global crises that Obama must prepare for now.
What the pundits and analysts don't tell you.
Is the United States really the impediment to a universal compact on global warming?
Why isn’t the Golden State at the climate talks in Doha?
Why corruption is set to become one of the defining political issues of the 21st century.
The world has spent two decades developing policies to combat global warming -- and we have little to show for it.
We've heard plenty about what the candidates want to do in office, but the future will be determined by what Tuesday's winner doesn't do.