Will it really decimate our winters though? I mean, the sun will still leave the Arctic for 6 months and the ice will reform through the winter. How much difference will it make down here at lower latitudes if the temps are -20 on average around the arctic circle versus -30? I know this is oversimplifying things and no doubt temps are warming. Maybe it’s more a question of how warm can we really get in winter months when farther northern latitudes will always be super cold thanks to no sun.
To counter my own thoughts, perhaps the normal seasonal snow pack pushes north year after year, say from near Ottawa now (they always seem to retain a pack when we torch and green in winter!) to insert name of Canadian town here. In which case we end up with winter climo of Columbus, OH in 25 years. So yeah, decimated would be a good choice of words in that scenario.