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Earth’s Temperature Timeline

Every month, we see the same headlines: the hottest May, June, July on record. Altogether, 2016 is on track to be the hottest year ever recorded. Those who argue against man-made climate change say that the earth has gone through temperature changes before. But it was never like this. Randall Munroe charted the earth’s temperature changes over the last 22,000 years. The change is gradual for about 21,000 years. Then the Industrial Revolution came along. The graphic is too big to display here entirely; you can see the whole thing at the site.

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The Earth will be fine, but the thin smear of stuff on its surface is more complicated and had problems with changes in the past. And it is rather difficult to compare the Cretaceous to now, since a lot of changes have happened. E.g oxygen content of the atmosphere was higher then, meaning animals could survive without a diaphragm like modern animals, to the point dinosaurs brought back might not be able to breath.
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21-22 thousand years is not a long time in terms of our geological history. The earth must have been a lot warmer in say the Cretaceous. The earth will be fine.
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