And 6 billion years ago Arizona didn't even exist. Nor did the Earth. Wow.
This tweet is so true and beautiful that it almost... hurts. #sciencehttps://twitter.com/KatiePavlich/status/870064843793076224 …
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And long before that meteorites and super volcanos broke havoc, so we're ok with nuclear proliferation too :)
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Before mankind climate change happened slowly. Organisms had time to adapt and evolve.
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Not true. "The central Greenland ice core record ... reveals episodes of very rapid change." https://www.ipcc.ch/ipccreports/tar/wg1/074.htm …
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