Faster carbon dioxide emissions will overwhelm capacity of land and ocean to absorb carbon

If fossil fuel emissions continue their upward course, the land and oceans will eventually exceed their capacity to absorb carbon dioxide from the atmosphere, according to a new and improved computer climate model. The model, one in the first generation to include the Earth's carbon cycle, indicates that vegetation and the oceans can only absorb so much carbon dioxide before they top out and become less efficient at removing carbon from the atmosphere.