What is imminent and already happening is the use of natural disasters and crisis as weapons of war by governments withholding or painfully slow walking critical aid, which honestly I might prefer just going to war because I think this is going to be far more brutal.
Would you rather be in a foxhole getting shot at or panicking as your power went out and now wet bulb temperatures are pushing your body into lethal territory and there is nowhere to go and no one to help...?
(Neither obviously)