World leaders recently announced a $20 billion deal to help get Indonesia off coal power. But there are doubts about the deal, because — for one thing — the country is building brand new coal plants.

Pope Francis celebrated Mass before tens of thousands of people, to close out an unusual mission by Christian religious leaders to nudge forward the South Sudan's recovery from civil war.

In parts of West Africa, communities have designated biodiversity hotspots sacred and measure their value by the peace of mind they provide, rather than in dollars and cents.

The unexpected deaths are hitting humpbacks and North Atlantic right whales on the East Coast and gray whales on the West Coast — populations that were already under watch.