Nearly 70% of infrastructure in the Arctic - including homes, hospitals, roads, railways, and industrial sites - is built on permafrost that is at risk of thawing by mid-century. 3/4 of the population living in the Arctic permafrost region, ~3.6 million people, will be affected in the next 30 years.

See the source article by following the link below:
Nearly 70% of infrastructure in the Arctic - including homes, hospitals, roads, railways, and industrial sites - is built on permafrost that is at risk of thawing by mid-century. 3/4 of the population living in the Arctic permafrost region, ~3.6 million people, will be affected in the next 30 years.