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In reply to the discussion: GLOBAL EXTINCTION WITHIN ONE HUMAN LIFETIME? [View all]Silent3
(15,909 posts)Devastating losses are not extinction. Only extinction is extinction. That we could make a big mess of trouble for ourselves, and cause extinction for many other species isn't hyperbole -- I'm not arguing against that. (We've already, of course, caused a good number of extinctions even without major climate change.)
We're omnivores with a very flexible diet that can adapt to a wide range of climates. Technology that helps us survive won't suddenly disappear completely either -- even clothing and making fire and simple tools are huge advantages, and we'd probably retain a good bit more technology than that, even with a great deal of infrastructure gone. While I can hardly guarantee human survival through a Permian-like change in climate, it's hardly a starry-eyed leap of faith to think that humans, with all of our many advantages, would manage to survive by the tens or hundreds of thousands, enough to keep the species going long enough to rebuild another day. (And create a new big mess all over again?)