U.S. Eyes Burying CO2 to Battle Climate Change
A worker wipes oil off a coring tool as it comes up from the earth.
In a Wyoming oil field, researchers funded by the U.S. Department of Energy are experimenting with injecting carbon dioxide underground to keep it from entering the atmosphere, where it contributes to global warming. But it's unclear if the greenhouse gas will stay below ground. NPR's Jeff Brady reports.
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