This year was one of the warmest and wettest in recorded history, and permafrost thaw is causing the ground at the mass gravesite to sink.

Rising Arctic temperatures are causing permafrost to thaw, putting the world’s largest city built on frozen ground in deep trouble.

Arctic rivers are undergoing significant changes due to a warming climate, with increased precipitation and permafrost thaw leading to stronger flows and altered chemical compositions.

Extreme flooding on Alaska's Arctic highway in 2015 caused thaw-induced sinking in the permafrost terrain up to 3 inches deep, with the most significant effects occurring in ice-rich areas, according to a newly published study.

Permafrost Pathways started two years ago with the goal of mapping the permafrost thaw and putting that data into the hands of the communities themselves. As human-caused climate change continues to warm the region and the permafrost melts more and more, the project is expanding.