Minnesota Star Tribune

399.98 CO2 ppm for week ending Jan. 29

CO2Now.org

January 31, 2015 at 5:15PM
(The Minnesota Star Tribune)
(The Minnesota Star Tribune)

Graph taken from web page of CO2Now.org, Mauna Loa CO2 Board, Scripps Institution of Oceanography. More information at https://scripps.ucsd.edu/programs/keelingcurve/

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