Leaders from the world's developed nations and rising economic powers have agreed on a "shared vision" on climate change at the G8 summit in Japan.
But no specific agreements have been announced, and India and China have reportedly dismissed the rich nations' target of halving emissions by 2050.
Leaders from eight emerging economies held talks with the Group of Eight rich nations on the final day of the summit.
A US official said the broad agreement represented progress.
Jim Connaughton, chairman of President Bush's Council of Environmental Quality, told the Associated Press that the agreement "will give us greater confidence and commitments as we go to next year".



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