Radiation, chemical and biological forces tackle two million tonnes of toxic chemical waste with huge mercury stockpile and oil poisons.
Dramatic floods hit Siberia with fears of worse to come
Floods break the banks of the River Ob, with 10 metre rise in water level
Plan to boost numbers of rarest big cat in the world
Wildfires rage across region as hot weather, storms and carelessness combine
Oil spill causes 'ecological disaster' close to Nefteyugansk city
Let's dance! Playful antics of world’s rarest big cat captured on camera
New oil spill in Siberia
World's deepest lake shrouded in smoke, swimmers covered in ash
Siberia on fire
Tiger sensation
Toxic fuel from 21,000 ton leak reaches pristine lake, bypassing floating booms, as rivers of diesel pollution cover-up is exposed.
Immediate public audit of a high risk waste storage in Russia is urged.
Ecologists from several countries lost battle to poachers who caught an endangered dark-feathered bird.
Pictures prove the gruesome fate of reindeer 'to meet demands for traditional medicines in China and South Korea'.
Vital for making its waters so 'pure', one theory is that rising underwater methane leaks are killing off the sponge, but is there a silver lining?
One region alone - Yakutia - has 5 million tons scrap metal dumped in polar regions, an ugly Soviet legacy.