The more precise, the better. Both worst-case scenarios (people start wars over water) and best-case scenarios (politics is turned upside down and focuses primarily on how avoid more catastrophies) are welcome.
Also, different people think it will be fine for different reasons. There are people who don't believe such changes will happen, or that humans aren't responsible, or that technology will save us. You would have to convince them from separate angles.
A realistic scenario is that "climate change" is going to be used as a catch-all argument for politically enabling mass-migration to certain areas. These are man-made economic and sociological disasters though.
As far as actual disasters go, depending on how long you've lived, you'd have already seen these and other doomsday climate predictions fail to come to pass.
> there would be a new ice age
> global warming would make much of the planet uninhabitable
> acid rain would render many cities unlivable
> many coastal cities would already be underwater
> changing climate would create new large scale storm patterns that would devastate large areas.
Throwing new doomsday fan-fiction onto the list might be entertaining, but isn't going to be terribly persuasive to climate change skeptics given the results so far.
This was a pretty good write up, because the theory was enforced by flooding along the red areas last year: https://www.therakyatpost.com/living/2019/11/06/9-msian-citi...