The glaciers are not the only parts of the system affected by the warming. And with a complex system you get a lot of positive feedback loops that with more war

The glaciers are not the only parts of the system affected by the warming. And with a complex system you get a lot of positive feedback loops that with more warming they push add more warming on their own (either more emissions like the one caused by permafrost thawing or more heat absorption because less ice reflecting light). Glacier melting is just another milestone in a road that will be pretty hard to stop walking till the end.