http://www.sciencemag.org/news/2019/11/watch-arctic-s-sea-ice-slowly-disappear

Researchers have identified what they’re calling the “last ice area,” a 2000-kilometer stretch of ocean northwest of Greenland where the Arctic’s summertime sea ice might survive for a few more decades. 

As reported in Geophysical Research Letters and depicted above, sea ice coverage in the Arctic Ocean has declined, on average, by more than one-third from 1984 through 2018. Only in two portions of the last ice area—one patch immediately north of Greenland, and another swath centered more than 1300 kilometers to the west along Canada’s northernmost islands—does near-total sea-ice coverage persist from year to year, the researchers say.