Summit ends with climate 'vision'
World leaders have proclaimed a "shared vision" on climate change, but failed to bridge differences between rich and emerging nations on curbing emissions
Concluding a summit in northern Japan, leaders from the G8 and developing countries said "deep cuts" in greenhouse gas emissions were needed.
China and other emerging powers declined to endorse specific targets.
The three-day summit on Hokkaido island also discussed Zimbabwe, and the global rise in food and energy prices.
UN Secretary General Ban Ki-moon had called on the G8 to tackle the "interconnected challenges" of soaring food costs, development, and climate change.
On the third and final day of the summit, the G8 and eight developing countries issued a statement calling global warming "one of the great global challenges of our time".