TheBatagaika crateris the world’s largest permafrost crater and emits a startling quantity of greenhouse gases.

Though it’s called a crater, that’s actually a misnomer.

In a study published in the journalGeomorphology, the teams presented their findings.

Satellite view of Batagaika crater

Photo: Google Satellite

All told, the total volume of permafrost thaw is about 1 million cubic meters per year.

About a third of that contains organic material, while the rest is melted ground ice.

Sadly, this translates to around 4,000 to 5,000 tons of previously permafrost-locked organic carbon released every year.

Unfortunately, there is no sign of slowing down as the depression is stuck in a positive feedback loop.

As the permafrost thaws, bacteria break down and release greenhouse gases.

Though Batagaika is still growing, researchers believe there is a limit to its expansion.