Explainer: How will UN climate deal on loss and damage work?

The decision by nations around the world to establish a fund to help poor countries hit hard by a warming planet was one of the most significant since U.N. climate talks began 30 years ago. Here's what you should know about the deal.

Emperor penguins now listed as threatened species

Emperor penguins will now receive new protections under the Endangered Species Act after the U.S. Fish and Wildlife Service says climate change is threatening to eradicate the species.