Matter of preference I guess. I like to hope humanity will continue to learn things about and explore the broader universe rather than descent into feudal oppression (or some-such) in the ashes of our former civilization, but whatever.
> I don't know what you mean here - are you suggesting mass migration is inevitable?
At this point, that's the conclusion, yes. Climate impacts cause incredible destabilization for folks who rely more closely on their local environment (subsistence farmers and the global poor generally), and yes - disruption leads to mass migration.
> No, I mean spraying dust into the atmosphere to make it darker, so less sunlight comes in.
.... yes, an emergency uncontrolled experiment to solve some of the symptoms of a global problem. The global economy as it currently exists is geoengineering at an absolutely monumental scale.
Also, your reply is just incredibly baffling and frustrating, to the point that I half think you're not being serious. "Oh, we'll just spray some dust in the air and reflect more sunlight to solve the problem" - it's ludicrous, and nobody serious who studies geoengineering shares your attitude. I do believe we're going to have to engage in geoengineering, but it's not something to be taken lightly (and the experts who study it generally agree). Never mind the fact that even if your "solution" worked, it wouldn't solve things like ocean acidification, and would at best buy us some time... while having potentially unforeseen consequences on cancer rates, crop production, solar efficiency, etc.
> It's like people procrastinating their homework until 5 minutes before the deadline. Eventually they'll get it done.
Talk about unearned optimism. Not everything is a problem you can just go "fix".