[RetroTechie]

> my guess is sufficient people may survive on a largely dead planet regardless, kept alive by hyperexploitation albeit at reduced population and living standards...

Yeah, a scenario of "humans surviving long-term, but in greatly reduced numbers" is entirely possible.

It's my fear that this may happen, but (as you point out) our planet's ecosystems are destroyed in the process. Not to mention human suffering.

We're rapidly running out of time to prevent such a scenario though.