 is is there any going back the longer we leave it the harder it's going to become the problem with ice fields like this is they are sustained by their own ice volume they're not the small mountain glaciers that we have in the european alps that can just shrink back and then if it stops warming they can stabilize as the climate warms this iceberg will continue to lower and as it lowers it warm it lowers into warmer air and once it starts doing that it's really difficult to stop it