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Levels of Carbon Dioxide, 1700-present
410
Atmospheric CO2 (ppm)
390
370
350
330
310
290
270
1700 1750 1800 1850
1900 1950 2000 2017
Year


Levels Of Carbon Dioxide 1700present410Atmospheric CO2 Ppm3903703503303102902701700 1750 1800 18501900 1950 2000 2017Year class=