- August 06, 2020
There are 5.8 billion acres of permafrost across the Northern Hemisphere. About 20 percent are susceptible to abrupt thaw, or about 1.1 billion acres. Alaska covers 375 million acres.
There are 5.8 billion acres of permafrost across the Northern Hemisphere. About 20 percent are susceptible to abrupt thaw, or about 1.1 billion acres. Alaska covers 375 million acres.