Greenhouse Gases

U.S. climate envoy John Kerry told NPR the declaration spurs mutual accountability. "I'm absolutely convinced that that is the fastest, best way to get China to move from where it is today," he said.

Oregon lawmakers may not get to vote this session on a controversial climate bill, but some companies are gearing up to burn fewer fossil fuels regardless.

New carbon pollution rules in Washington will pack the biggest wallop for cement makers, oil refiners and paper mills.