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Anthropogenic carbon uptake rate from 1765 to 2008 (black solid line). S Khatiwala et al. Nature 462 , 346 - 349 (2009) doi:10.1038/nature08 526.
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Anthropogenic carbon uptake rate from 1765 to 2008 (black solid line). S Khatiwala et al.Nature462, 346-349 (2009) doi:10.1038/nature08526