Radiation, chemical and biological forces tackle two million tonnes of toxic chemical waste with huge mercury stockpile and oil poisons.
New discovery of rare crystal Rosenbergite at 'burning ice' site where earth is hot despite temperatures of minus 35C.
Geologist who built ramshackle hut 100 metres from Agafya Lykova passes away and is buried near the last place he called home.
Adventurers from Irkutsk's A1team spruce up the giant lake's shoreline, before showcasing its stunning scenery - and ancient rock paintings.
The famously clear waters of Baikal - the world's deepest and oldest lake - are under threat from tourists, says leading scientist Maxim Timofeyev.