World Agrees to Climate Deal

President Barack Obama wants to be remembered as the president who saved the world from climate change. But the 195-nation accord aimed at curbing global warming may be the most fragile of his presidential achievements so far.
More than any of his other top accomplishments—economic recovery, health care reform, the Iran deal, all of which involved Congress to some extent—Obama’s environmental legacy rests on the exercise of executive power over the objections of Republican lawmakers.

After two weeks of bleary all-nighters in Paris, diplomats from around the world have hammered out a major global agreement to address climate change. Here's the full 31-page document, which was approved by 195 countries on Saturday.

It's important to be clear on what this wad of paper actually does. The Paris climate agreement hasn't saved the planet and it hasn't solved global warming. Not by itself. Instead, the deal is supposed to add structure and momentum to efforts that are currently u