EDIT Ok so it’s just the trolly problem.
EDIT2 : AHA War Games 1983. “The only winning move is not to play.” (We might call this the final product of a lot of smart philosophical digestion, because it’s a famous movie). There’s always the perfectly valid option to ditch the riddle. (Because maybe the riddle is dumb, or maybe the riddle is no better than a thousand others, utilitywise )
OP, whatever you are on, don’t use it ever again. There is no reason to think that torturing and killing kids will solve global warming. In short, it is a useless hypothetical that adds nothing to the discussion about solving the problem. Meaning it useless, while you get to pretend that you are somehow smart. Newsflash: you are not.
It’s insight like that. Thanks