Yeah that’s definitely where things will get sticky for California. Otherwise we’re pretty self-sufficient. I’m surprised desalinization hasn’t made more progress.
That’s where the discussion turned and ~everybody agrees with the proposition.
The terms are not defined very well: it makes sense to clarify what the time horizon is for “existential”. There are dozens of existential threats on a long enough view and mitigating the risks of many of them doesn’t require a complete upending of the economy. It’s not nearly as simple as handing every oil and gas worker a shovel and some saplings, and every truck driver an electric vehicle.
I’m not sure what learning that gets you. It’s nearly an irrelevant consideration and fairly obvious. I am fully confident that if the average temp went up even 5 or 10 degrees, human beings are resourceful and adaptable enough that some will survive.
So, the chance of every last human being wiped out is basically nil. That’s obvious. Humanity in some form will undoubtedly continue to exist.
The problem is that climate change will lead to a massive amount of death and misery for people who are poor and can’t afford adaptive technologies or to move out of the hellscape that they ultimately find themselves in.
The real play is to learn that climate change will cause many, many people (mostly non Americans) to die. I’m not sure whether or not you have accomplished that yet. And if you have, it’s not clear if you give a shit.
If this is a centrist view on climate change on this forum then fine. It’s still more than enough to be called an emergency or a crisis, and require significant intervention to avert or minimize.