Washington (PTI): Danish Prime Minister Anders Fogh Rasmussen has sought US intervention in persuading fast growing economies such as India and China to cut carbon emissions.

"We need a comprehensive global agreement and American leadership is needed to reach that goal," he told a joint press conference on Saturday with US President George W Bush.

"The goal is to get the US, China and India to participate in the follow-up treaty to the Kyoto climate accord, which expires in 2012," he told reporters at the US president's ranch in Crawford.

Denmark is hosting an important climate meeting in December next year. The prime minister expressed his concern over climate change which contributes to global warming and seeks US help in reducing emissions.

The Kyoto Protocol, signed in 1997 in Japan, requires major developed nations to slash emissions causing global warming by an average of five per cent from 1990 levels between 2008 and 2012.

The United States, earlier, refused to ratify the Kyoto Protocol, the UN agreement mandating emissions reductions for industrialized nations, because it did not cover developing nations like India and China.

The United States is ready to accept "binding international obligations" to reduce greenhouse gases, which could be announced in July, a senior White House official said.

The group of 17 -- including the G8 nations, the EU and major developing nations such as India and China-- met at Bush's behest last September in Washington, and then again in January, in Hawaii.