[SciShow - Sources] The Doorway to the Underworld is Growing | Weird Places

Source: The Doorway to the Underworld is Growing | Weird Places

Sources:

https://www.sciencedirect.com/science/article/abs/pii/S0169555X24001338

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Image Sources:

https://visibleearth.nasa.gov/images/90104/batagaika-crater-expands/90126l

https://link.springer.com/article/10.1007/s12665-020-8895-7

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https://link.springer.com/article/10.1007/s12665-020-8895-7