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by zaarn
2963 days ago
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> You cannot show there was no other a period in Earth's geologic history where CO2 levels rose by 150ppm (or 150%, whichever is not relevant) in less than 200 years That assumes the CO2 is also gone just as quickly. But I doubt that would happen unless you can show a natural process that could not only increase the CO2 level by 150ppm but also decrease it by 150ppm just as quickly. |
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