“We believe that global emissions will need to peak over the next few years, and be reduced to 50 percent below 1990 levels by 2050, recognising that the time frame for peaking will be longer in developing countries,” the draft said.

Leaders of the 21-member Asia-Pacific Economic Cooperation (APEC) forum, including the United States and China, will meet in Singapore on November 14-15 to discuss global economic recovery, environmental issues and free trade.

The summit will come ahead of crucial world climate talks in Copenhagen in December.