China holds key to climate change deal: UN's Ban

China holds key to climate change deal: UN's Ban: "The US Congress is considering legislation that would reduce its greenhouse gas emissions by 17 percent from 2005 levels by 2020. But China has said such cuts are not enough.

When the US special envoy for climate change, Todd Envoy, visited Beijing last month, China reiterated that developing countries should be held to a different standard on emissions.

China and the United States are the two biggest emitters of greenhouse gases."