That's never the preferred answer. That's the trivially achievable answer, given the sheer bloody-mindedness of the body politic, and the difficulty in really,

That's never the preferred answer. That's the trivially achievable answer, given the sheer bloody-mindedness of the body politic, and the difficulty in really, truly convincing even a small portion of the population of existential risk when they haven't already lost family members to said risk. It is literally the least we can do, while still doing something. The fact is, I can't fight global warming with my own actions. Collective actions are required, and they need to be fairly substantial sacrifices on the part of society. Coordination problems on a national/global scale are just not a thing we're good at solving without force of arms. Enterprises that cost trillions of dollars are a thing we have the luxury of affording; All we would need to do is get supermajority agreement on the subject.