Climate change is causing Siberia’s permafrost to thaw. It’s a growing environmental problem, emitting greenhouse gases, damaging buildings and creating vast craters in the landscape. But it's also revealing an ancient treasure — the tusks of woolly mammoths. Subscribe to VICE News here: http://bit.ly/Subscribe-to-VICE-News Check out VICE News for more: http://vicenews.com/ Follow VICE News here: Facebook: https://www.facebook.com/vicenews Twitter: https://twitter.com/vicenews Tumblr: http://vicenews.tumblr.com/ Instagram: http://instagram.com/vicenews More videos from the VICE network: https://www.fb.com/vicevideo #VICENews #News