The options are make some voluntary changes now, or make very chaotic and much bigger forced changes later.

If we make the wrong choice our culture becomes extinct. We may or may not survive as an animal species, but that's almost a secondary issue.

That's it. That's what's on the table. Short of surprise alien intervention or unobtanium Magical Carbon Capture Technology™ there are no other choices.

The political problem is that we've managed to isolate ourselves from both physical and emotional challenges to the extent that we'd rather believe in a variety of fantasy game tokens than deal with reality.

But if that's the best we're capable of as a species, that's where we are. No one is going to give us a special pass. We'll just be one more failed species in a very long list, and that will be that.