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kjdog03
kjdog03
03.12.2020 • 
Mathematics

Atmospheric carbon dioxide (CO) is believed to be a primary factor in global warming. Levels
of CO2 are increasing because human activities,
such as burning fossil fuels, send more CO, into
the atmosphere than natural biological processes
remove. Estimates in 2012 suggested that Earth's
atmosphere contained 393 parts per million (ppm)
of CO, with another 2 ppm added each year.


Atmospheric carbon dioxide (CO) is believed to be a primary factor in global warming. Levels of C

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