Climate change took a starring role in this week's State of the Union address, but the White House could do more in the coming months.
The agreement reached by 196 countries at the COP21 meeting in Paris is a turning point towards a climate solution. Here are the details of the pact.
It's unclear how transparent countries have been about these essential ingredients of their plans for the United Nations.
The world's two biggest emitters are entering a new phase, with common ground on the three most critical elements on the road to Paris.
Not all climate action is created equal. A look at how fair — and how ambitious — countries are being with new national commitments.
We need a document everyone can get behind, but as the Paris summit nears, questions remain.