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Kevin ⇤ 2m ⇥ Pluck
How much CO2 is in the atmosphere, to help visualise 400 parts per million here's a man and a box with some cups.
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Kevin ⇤ 2m ⇥ Pluck 9 Jan 17
Replying to @kevpluck
Made with the assistance of SuaSponte_A275
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RenaissanceWarrior 9 Jan 17
Replying to @kevpluck
Have 2 cups now (400ppm), over the last 1M years the highest was around ~300ppm. And we continue pumping out more CO2 each year.
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