megaslump (11. 856)

The expanding Batagaika crater is a thermokarst depression in the northeastern Siberia taiga, presently about one kilometre long and growing at an alarming rate, beginning as a small gulley in the 1960s when the permafrost thawed (see previously) after the surrounding forests were cleared and since 1990, swallowing more and more land and becoming known as the Gateway to Hell. On a vicious trajectory, feedback loop, more thawing occurs as the gash gets bigger and the ground is bereft of tree cover and releases more ancient organic stores of carbon that further contribute to the planet’s warming, making more unstable sinkholes.