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Storing CO2 underground could shake up the Earth

Combating global warming by pumping carbon dioxide into the ground for long-term storage – known as carbon sequestration – could trigger small earthquakes that might breach the storage system, allowing the gas back into the atmosphere, according to Stanford geophysicist Mark Zoback. That hazard, combined with a need for thousands of injection sites around the globe, may keep sequestration from being as feasible on a large scale as some have hoped.

Louis Bergeron
December 14, 2010