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Thursday, May 01, 2014
CO2 Making Its Inexorable Increase
CO2 levels are over 400 ppm now. They were around 320 ppm when I was born.
The Earth's CO2 concentration has typically varied between 180 and 280 over the last 800,000 years. Excursions to 400 ppm are unheard of.
CO2 levels are over 400 ppm now. They were around 320 ppm when I was born.
The Earth's CO2 concentration has typically varied between 180 and 280 over the last 800,000 years. Excursions to 400 ppm are unheard of.
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