Siberian tundra holes are a mystery to me

An Australian news piece juxtaposes mysterious Siberian holes with my Arctic tundra carbon release concerns but I have no idea about the cause of the holes. As a physical geographer, I’m aware of pingos that these features resemble but these features are holes and pingos are mounds. If you ask me, talk to field scientists with expertise in permafrost. For further reporting on the mysterious holes, see here.

screenshot searching “Sberian hole” in Google images