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Carbon cycle

A dent in carbon's gold standard

The global uptake of carbon by land plants may be greater than previously thought, according to observations based on the enigmatic Keeling curve of rising atmospheric carbon dioxide. See Letter p.579

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Figure 1: Atmospheric CO2 concentrations and isotope composition measured at Mauna Loa, Hawaii.

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Correspondence to Matthias Cuntz.

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Cuntz, M. A dent in carbon's gold standard. Nature 477, 547–548 (2011). https://doi.org/10.1038/477547a

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