Temperature variations follow an irregular pattern, but they do have a somewhat cyclical occurrence.
For the first 6,000 years of human civilization, CO2 levels were stable around 280 ppm.
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Latest CO2 increase marks largest rise ever in world's atmosphere
The "Keeling Curve" was conceived by scientist Charles David Keeling as a graphical representation of the accumulation of carbon dioxide (CO2) in the Earth's atmosphere. Data shown...
