Scientists say there is growing evidence that rising temperatures were catalyst for massive unexplained holes in ground.
High levels of ‘fire ice’ trapped in permafrost may turn Russia into a global leader of new gas sources.
Sightings of 'primeval monsters' in Siberia's Lake Labynkyr were made before 'Nessie' was spotted in Scotland.
These extraordinary pictures give graphic new evidence of climate change.
Local reindeer herder witnessed the tundra explosion that led to birth of new hole in river.