Report ponders: How sensitive is climate to CO2?

(AP) Report ponders: How sensitive is climate to CO2?
By KARL RITTER
Associated Press
STOCKHOLM
Scientists are more confident than ever that pumping carbon dioxide into the air by burning fossil fuels is warming the planet. The question is, by how much?

It's something that officials and scientists meeting in Stockholm will try to pin down as precisely possible Friday in a seminal report on global warming.

The values adopted by the Intergovernmental Panel on Climate Change are important because they could affect how hard governments try to rein in CO2 emissions _ which are still going up largely due to the rapid expansion of China and other emerging economies.

A lower value may reduce the sense of urgency in making costly energy transformations from oil, coal and gas to renewable sources like solar or wind power.

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