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“Siberia’s ‘doorway to the Underworld’ Is Getting So Big It’s Uncovering Ancient Forests” posted an article this week on a huge crater that has formed in the Siberian permafrost region since the 1960s and is rapidly growing.  As it does, it has revealed ancient forests, carcasses of mammoths and ancient horses, and what could be 200,000 years of climate records.  The records come in the form of layers of deposited pollen and woody materials that show what the climate was like in past centuries.  You can read more about how the crater was formed and what it means for studying long-term changes in climate as well as predicting future climates at

Alexander Gabyshev, Research Institute of Applied Ecology of the North