Ppl have so internalized the idea Earth was made for us they don't realize how few tweaks would make Earth an "alien planet"https://twitter.com/alexcruise/status/871087456392667136 …
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Fully liberating all buried carbon wouldn't send us back to a replica of the Carboniferous -- it doesn't work like that
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But the new world would be different as hell (possibly literally)
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What health issues would human beings have in an environment with higher quantities of oxygen that we are used to?
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