SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Crater in Western Siberia. Aerial photograph of a giant crater (80 metres across, unknown depth) discovered in 2014 on the Yamal Peninsula in Yamalo-Nenets Autonomous Okrug, Western Siberia, Russia. This Arctic area of tundra and permafrost is rich in resources such as natural gas. The crater is thought to be 2 years old. One theory is that it was formed by a water, salt and gas mixture igniting in an underground explosion. This may have been as a result of global warming. Photographed in July 2014.
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