Or Termination Shock.

Sigh. Every single time on Reddit, I'd pop open the comments on a thread about geoengineering and do a quick text search for "Snowpiercer", and there it would be. And now on the Fediverse too.

It's a terrible idea to be making any sort of real-world policy decisions based off of Hollywood action-adventure sci fi movies, whose purposes is to sell tickets by presenting a scary danger that the hero can battle using kickflips and chokeslams or whatever rather than being remotely realistic in how they treat the scenario.