Emaciated animal walked 1500km south and away from Arctic Ocean, searching for food.

Toxic fuel from 21,000 ton leak reaches pristine lake, bypassing floating booms, as rivers of diesel pollution cover-up is exposed.

Reindeer herders find more craters in the far north in a deepening puzzle for scientists. 

Experts to visit remote craters to solve the puzzle on their creation.

Same phenomenon of discharge of gas hydrates 'led to crater formation in Russia and disappearance of ships in Atlantic'.

Blocks of soil and ice thrown hundreds of metres from epicentre of the funnel at the Yamal peninsula.

High levels of ‘fire ice’ trapped in permafrost may turn Russia into a global leader of new gas sources.

Scientists say there is growing evidence that rising temperatures were catalyst for massive unexplained holes in ground.

His cries woke other participants, and one shot the bear.

First findings from joint UK-Russian project funded by Abu-Dhabi give positive news on future for the rare bird of prey.