It's not very sooty in Antarctica because its further from human activity but Arctic ice can get pretty dirty after volcanic eruptions or wildfires. Greenland

It's not very sooty in Antarctica because its further from human activity but Arctic ice can get pretty dirty after volcanic eruptions or wildfires. Greenland gets it especially bad from all the Canadian fires that are nearly annual now: https://www.washingtonpost.com/news/energy-environment/wp/2017/06/26/wildfires-can-cause-glaciers-to-melt-from-over-a-thousand-miles-away-scientists-find/ https://www.washingtonpost.com/news/energy-environment/wp/20...