China Must Do More

Sweden's environment minister Andreas Carlgren has gone on the offensive against China and said it could learn from Japan when it came to cutting greenhouse gasses.

Although Carlgren didn't name China, there was no doubt which country he was referring to when he told reporters that some emerging economies needed to do more.

"For some very big polluters, emerging economies, I expect much more – for the biggest ones, up to 30 percent deviation from business as usual," Carlgren said.

With its fast-rising emissions, China's stance is crucial at the Copenhagen climate talks in December to create a new pact to succeed the current Kyoto Protocol, which expires at the end of 2012.

Carlgren said that Japan's newly elected government provided some optimism by pledging to cut carbon dioxide to a quarter below 1990 levels by 2020.

"If this current newly elected government could deliver what its party has hinted at during the elections that could create a momentum in the climate change negotiations," Carlgren said.