Atmospheric CO2 reached 387.81 parts per million (ppm) in July 2009 up from 386.38ppm this time last year according to data released by the National Oceanic Atmospheric Administration (NOAA) earlier this month. Atmospheric CO2 has been rising since Charles Keeling started taking measurements with high precision instruments at the remote Mauna Loa Observatory in 1958. [...]
Writer, science geek, gardener, mother. Recovering vegetarian. Barefoot whenever possible.
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