- Giant new 50-metre deep crater opens up in Arctic tundra http://siberiantimes.com/other/others/news/giant-new-50-metre-deep-crater-opens-up-in-arctic-tundra/ 5 comments environment
- Giant new 50-metre deep 'crater' opens up in Arctic tundra, believed to be caused by the build up of methane gas in pockets of thawing permafrost under the surface https://siberiantimes.com/other/others/news/giant-new-50-metre-deep-crater-opens-up-in-arctic-tundra/ 351 comments worldnews