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Carbon Cycle

Carbon cycle - Wikipedia, the free encyclopedia

Diagram of the carbon cycle. The black numbers indicate
how much carbon is stored in various reservoirs, in billions
of tons ("GtC" stands for GigaTons of Carbon and figures
are circa 2004). The purple numbers indicate how much
carbon moves between reservoirs each year. The sediments,
as defined in this diagram, do not include the ~70 million
GtC of carbonate rock and kerogen.