[splittingTimes]

IIRC, when sheet melts, it will release a huge amount of fresh water into the salty Atlantic gulf stream and shut it down. The convection from top warm water sinking into the depth because of a salt concentration gradient will stop functioning.

Besides it's climate impact and heat transfer mechanism it will likely disturb the other ocean currents that are import for a stable climate as well.

[AstralStorm]

Predicted results are huge acceleration of global warming as albedo is decreased and water absorption of GHG is decreased due toreduced mixing. Plus some rather big local climate changes earlier than that.

Easily getting us to the edge of what is livable even with advanced technology.