The coming ice age is like no other problem ever considered by cryonics.

The ice age is the biggest threat to cryonics reanimation

The coming ice age is not like any other existential threat ever thought of by cryonicists because it is cyclical, predictable, arriving right now by indications, and inevitable. It will affect the entire world's population with absolute decimation if we do not respond through full common acknowledgement and agreement on management of the problem by adapting. Without a worldwide adaptation plan, no human venture including cryonics reanimation, will exist.