The loss of Arctic sea ice cover has spurred a sharp rise in shipping traffic -- as well as coast guard rescue missions.
The U.S. and Canada committed to a range of climate actions, such as cutting emissions and protecting indigenous communities.
White House officials helped craft a deal Republicans wouldn't be able to stop -- and the effort required major political capital.
John Kerry promised $861 million in aid to countries on the frontlines of climate change.
One of the world’s largest oil producers is getting in the way of a deal, delegates and campaigners say.
Sanders' plan proposes a carbon tax, deeper emissions cuts, and investment in clean energy.
The president said that countries should be held accountable to periodic reviews of emissions targets.
Those hoping the new prime minister will be a climate champion willing to fix the damage done by his predecessor, Stephen Harper, could be in for a reality check.
The pope's call to climate action received a lukewarm response from Catholic leaders in the United States.