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January 29, 2009 5:09 PM

Scientists hope satellites will solve riddle of missing CO2

Only half of the carbon emissions that world dumps into the atmosphere evey day actually stays there. Scientists, however, have never understood where the rest of it goes. Now they're hoping a pair of satellites, one from NASA, the other from Japan, will help identify the forests, pastures, crops and soil — even golf courses — that soak up carbon dioxide.

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