Radiation, chemical and biological forces tackle two million tonnes of toxic chemical waste with huge mercury stockpile and oil poisons.
Baikal gets a clean-up - but is enough being done to stop pollution?
Could this Siberian invention combat future forest infernos?
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.