Charlie Stross on Nostr: npub1dakw8…cmdaj Nope, we're nowhere close to being able to destroy the ...

npub1dakw8zxftk7vncll3dg8amj467p49qdvvhnq0hz0ntxw6vlyqgysfcmdaj (npub1dak…mdaj) Nope, we're nowhere close to being able to destroy the biosphere—by some estimates more than 70% of it is subterranean, we'd need to sterilize the top 5km of the Earth's crust, which is well beyond a dinosaur-killer asteroid in terms of energy budget. (And the K-T impactor was about 5000 strategic nuclear exchanges in one handy package.)

We *could* probably fuck all currently-existing vertebrate life—for 20 million years or so—by creating a Canfield Ocean if we wanted to, though.