Giant Permafrost Crater “Gateway to Hell” Is Rapidly Expanding in Siberia
Deep in Siberia, an enormous depression in the Earth, often called the Gateway to Hell, is rapidly expanding, taking large chunks of Earth with it. The Batagaika crater is the world's largest permafrost crater and emits a startling quantity of greenhouse gases. The tadpole-shaped hole measures a kilometer long (almost a mile) and reaches depths of up to 100 meters (328 feet). Though it's called a crater, that's actually a misnomer.













































































