The Dictionary of the Climate Debate (DCD)

annual mean CO2 rate of growth
Definition: The difference in average global CO2 concentration between January 1st and December 31st of a given year. It represents the sum of all CO2 added to and removed from the atmosphere during that year by both human activities and by natural processes.

1. Click the widget below to get the most recent monthly mean CO2 readings from the Mauna Loa observatory.

Current CO2 level in the atmosphere

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