I'm not saying it will come to it, but the worst case for global warming is not some jungle planet, it is earth turning into a planet like venus, which would pr

I'm not saying it will come to it, but the worst case for global warming is not some jungle planet, it is earth turning into a planet like venus, which would probably sterilize earth if it happens faster than evolutionary timescales that are needed for nature to adapt as you suggest. The argument about us not being able to save ourselves is really a falacy, akin to whataboutism. It's the same as saying we shouldn't fly to the moon as long as there is famine on earth, or not try to cure cancer as long as we don't have a cure for the common cold.