Warning of methane blasts in Kara Sea adjacent to Yamal craters caused by gas eruptions associated with melting permafrost due to global warming.

As footage emerges of more unexplained explosions above Siberia, suspicion falls on recycling of gunpowder at old chemical plant.

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

A 1,159 metre volcano named after one of Russia's most fearsome tsars erupted early Thursday for the first time in 23 years.

Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.

Startling new details emerge of the most mysterious of Siberia's newly created giant permafrost holes.

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

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

Scientists say a 'fountain of gas' poured from jelly-like trembling earth in tundra on Belyy Island in northern Siberia.

Earth is moving as 'leaking methane gas due to global warming causes surface to bubble' in a new phenomenon.