The larger the tree, the greater its accumulation of carbon, according to a study published in Nature. "The trees that are adding the most mass are the biggest ones, and that holds pretty much everywhere on Earth that we looked. Trees have the equivalent of an adolescent growth spurt, but it just keeps going," said ecologist and study co-author Nathan Stephenson of the U.S. Geological Survey. The research goes against previous theories that trees lose their ability to gather carbon as they grow older.

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