Gas bubbles from waters filling crater hole on Yamal peninsula two months after volcanic-style explosion in thawing permafrost.

Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.

Or is it too expensive to put the environment before the need for energy?

Giant holes created when pingos erupted after filling with gas.

More craters expected to form due to such eruptions as permafrost melts - and they ARE caused by global warming releasing methane gas.

Venison exports will 'increase' despite first anthrax outbreak in 70 years, but scientists remain adamant: Herd numbers must fall further.

Secret KGB documents and a book by ex-FSB colonel kickstart 100 year old search for missing Romanov treasures and valuables.

Satellites show giant hole ringed by 20 'baby craters'.

More than 20 calves born although park keepers say there could be more.