US objects to carbon-curbs split

America has challenged China’s view of how to split the burden of curbing carbon emissions, saying the rich-poor divide of previous climate agreements will not work in a future pact.

The US envoy to international climate talks in Qatar, Todd Stern, said that the next climate deal must be based on “real-world” considerations, not “an ideology that says we’re going to draw a line down the middle of the world.”