| http://www.w3.org/ns/prov#value | - Carbon sequestration is a plan to capture and bury as much as 10 trillion metric tonnes of carbon dioxide deep in the ground, hoping it will stay there forever. (A ton is 2,000 pounds; a metric tonne is 2,200 pounds; ten trillion is 10,000,000,000,000.) Though the plan has not yet received any substantial publicity, it is very far along.
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