Oh, I agree with you that humanity probably won't go extinct in the next 100 or maybe even 200 years. We're pretty adaptable. But if you think the global ocean

Oh, I agree with you that humanity probably won't go extinct in the next 100 or maybe even 200 years. We're pretty adaptable. But if you think the global oceans being completely empty of fish--I mean, nothing larger than your hand is alive--entire continents reverting to first savannah, then desert, and parts currently desert literally becoming uninhabitable, then yeah, sure, it's some economic damage and a small war. This isn't "adapting to a changing planet". It's more like "adapting to life without the leg I am currently hacking at with a dull rusty blade--oh look, bone! can't quit now...".