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The post's accompanying graph shows CO2 levels and global temperatures rising along with three staple crops: wheat, rice, and ...
They then used this CO2 data to establish global mean temperatures during the same period, assuming a linear relationship between CO2 and temperature increase. Using this new pre-1700 baseline ...
As the percentage of carbon dioxide in our atmosphere has increased so has the Earth's mean temperature. Note that the shape of the first graph showing the amount of carbon dioxide in the ...