On 1 May, the 'Ob Sea', close to Novosibirsk, was completely clear of ice.
Tornado - first since 1954 - signals freak downpour, opening craters in roads which swallow up cars.
Daring video from kids in Russia’s coldest region urges actor to take the ice bucket challenge to show all is well with Siberian weather.
Greenpeace claim authorities underestimate the scale of destruction, amid warnings of lack of resources to fight fires.
Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.
These extraordinary pictures give graphic new evidence of climate change.
Call to locals and tourists to aid experts counter the green gunge 'polluting' world's deepest lake.
Shoreline on remote island retreats by 74 metres in seven years due to increased wave power of unfrozen sea, and thawing permafrost.
Oilmen forced to stop work after being trapped in 'horseshoe' of burning taiga, as pall of smoke smothers Irkutsk region where state of emergency imposed.