China said Saturday it had agreed with the U.S. to take up climate change and a handful of other issues, a sign of small but possible progress at recently concluded talks that were otherwise marked by acrimonious public exchanges over the divisions between the world's two largest economies. China's official Xinhua News Agency said in a dispatch from Alaska, where the two-day meeting wrapped up Friday, that China and the U.S. had decided to set up a working group on climate change and hold talks "to facilitate activities of ... diplomatic and consular missions" and on issues related to each other's journalists.

Using apocalyptic images, three presidents and seven foreign ministers warned Thursday that a warmer world is also a more violent one.

Crucial U.N. climate talks next month are likely to fall short of the global target for cutting coal, gas and oil emissions, U.S. climate envoy John Kerry says.