It may be a silly question but why does the Arctic warm so fast despite being so white ("albedo" is the word, I believe)? Isn't all that whiteness supposed to deflect all those pesky sun rays back into space (or wherever)? I heard on BBC that they use white paint in India to paint rooftops so that it's not so scorching hot inside
See this video (NASA) where the 1979-2020 shrink-expand cycle of the sea ice in the Arctic. Old ice is going away, and new ice is not living to the year after. More waves, stronger, during a longer interval since there is less cover means more energy and thus worse conditions for ice to reform.
Mid-latitudes to low-latitudes are also warming, but there is no loss of albedo equivalent to polar regions, explaining why the polar regions are sensible in comparison.