The story

Leaders of both industrialized powers and emerging economies have agreed to work together on setting a goal to limit global warming to levels recommended by scientists, U.S. President Barack Obama said at the G-8 summit.

The G-8 countries -- comprising the United States, Britain, France, Germany, Italy, Japan, Canada and Russia -- agreed to a target of reducing their carbon dioxide emissions by 80 percent by the year 2050 to try to prevent the Earth's atmosphere from warming by more than 2 degrees Celsius (3.6 degrees Fahrenheit), Obama said.

Thursday's meeting with emerging economies including China also secured a commitment from the developing countries to work for limiting global warming to the 2 degree Celsius threshold, Obama said. Read full article »

CNN's Paula Newton in L'Aquila, Italy, contributed to this report.

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