Alexey Kolganov films himself skating on transparent ice of lake Baikal, as new cracks form under his skates. Most surprising is the unexpected, cosmic sound.
Father missing under snow; more than 200 people continue search and rescue at -23C, snowstorm and bleak light of polar night.
The Bear Patrol in is on high alert as predators are gathering by a walrus rookery. At least nine polar bears were noticed by residents of Ryrkaipiy, a village in the easternmost region of Chukotka.
Baikal is located in a rift zone, a deep crack in the Earth's crust which narrows at depths of several dozen kilometers. A tranquil video of white and silver bubbles of methane caught in newly-formed ice was filmed at Maloye More, a strait that separates the lake's largest island from the western shore of Lake Baikal.
Stuck in ice, two trucks of a local silver mining company got trapped more than a month ago. Drivers have to live nearby as they keep trying to remove their vehicles.
Blame for pollution is focused on failure of coal plant to filter emissions.
By this time of year, boats are usually plying the ice-free Ob, but in 2018, while the winter covering the river has begun to move, it has not cleared.
Thick ice and heavy spring floods combines to cause severe flooding in Yakutia. Specialists numbering around 100 have been moved from Baikal Search and Rescue Unit (Irkutsk region) and the Siberian Rescue Centre (Novosibirsk region) have been moved the the stricken region.
Overnight ice rain and north winds turned Vladivostok, Russia's Pacific capital, and most of the Primorye region into a frozen land with hundreds of power lines cut by wet snow. The storm left 120,000 people without electricity and many without heating and water.
The aim is to give warnings over seismic activity that could lead to the sudden formation of new craters, which could potentially damage key industrial infrastructure.
Gas bubbles from waters filling crater hole on Yamal peninsula two months after volcanic-style explosion in thawing permafrost.
Hundreds of craters caused by methane explosions were discovered underneath Barents sea. Further research finds evidence that the violent explosions could happen again in the future.
Scientists confirm loss of ‘Pearl’ island, while schoolchildren using satellite maps identify one of the new icy Russian isles.
Permafrost preserved the ‘oldest blood in the world’ boosting hopes of bringing extinct species back to life.
Amazing footage shows the bears just 150 metres from the nearest house as shooting is criticised - but does little to deter predators.
Unique paleontological sites are facing destruction from gangs seeking to sell prehistoric remains. The hunters are especially active in late summer, when the permafrost retreats leaving mammoth remains more visible.
March brings a gathering of paddle boarders on a big ice floe in Ussuri Bayk. The air temperature didn't go above 10C and water was at maximum of 5C.
Yakutia in a white blanket as temperatures dip to minus 6C as winter 'comes too soon'.
Video shows hero climbers manually breaking ice off its cable stays at height of 324m (1,063ft) in Vladivostok.
Instead of halibut, fisherman are increasingly catching less valuable Pacific cod, voracious bottom feeders whose numbers in recent years have exploded.
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