Observed Global CO2 Fluxes

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Description:
Blue Curve: CO₂ rate of change based on Muana Loa Record.

Black Curve: CO₂ rate of change based on average of Mauna Loa and South Pole after 1958 and based on Etheridge et. al. ice core data. The curve is smoothed to suppress short-term interannual variability, for example, due to El Nino events.

Red Curve: Fossil fuel CO₂ emissions.

Data from Scripps CO₂ Program.
Last updated February 2005.