Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.
And take part in scientific experiment to PROVE that the leaking of harmful greenhouse gases in the Arctic can be slowed.
Scientists split after expedition to see the '100 million year old reptile' in Yamal.
Monument to Kate Marsden unveiled in Sosnovka village 123 years after she set out on her epic work.
Worried about the rapid destruction of permafrost from global warming? Here's how you can counter it by restoring the woolly mammoth habitat.
Haunting images of this Railway to Nowhere, built by Gulag convicts in the cruellest of conditions on the cusp of the Arctic Circle.