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A new way of sucking carbon dioxide from the air and storing it in the sea has been outlined by scientists. It's claimed to be three times more efficient than current technology to limit the greenhouse gas and could prove an important advance in the battle against global warming. The lead author of the study, Arup SenGupta explains how it would work. (Picture: An emission comes out of a smoke stack on a building as the sun rises on January 27, 2023, in Hoboken Credit: Gary Hershorn / Getty Images)