Scientist warns of 'environmental disaster' due to 'irreversible' pollution in world's deepest and oldest lake.
Living bacteria found in permafrost - '3.5 million years old' - is 'scientific sensation' which allows 'mice grannies' to reproduce.
Warning of methane blasts in Kara Sea adjacent to Yamal craters caused by gas eruptions associated with melting permafrost due to global warming.
The second largest city of the Russian Far East faces nervous hours and days to see if its dikes hold back the deluge.
RusHydro, RosGeologiya and Transneft 'to rebase from Moscow to the Far East'.
The BIOS-3 closed ecosystem in Siberia sustains human life autonomously by creating a micro-Earth.