New discovery of rare crystal Rosenbergite at 'burning ice' site where earth is hot despite temperatures of minus 35C.
Putin fires top official in Russian Far East, and calls for Investigative Committee to check how authorities performing.
Arctic permafrost is degrading much faster than expected, warn scientists from the extreme north of Yakutia.
New statistics on Saturday showed the vast scale of the human effort in Russia to halt a natural disaster that has destroyed swathes of woodland and taiga.
Image of 'polluted red river' caused shock but Nornickel stresses it is committed to cleaning up environment, and there will be no repeat.
Economic crisis to blame for delay in plan to breathe new environmentally-friendly life into former Lake Baikal polluter.
Six infernos ravaging the region's nature have been extinguished in the past 24 hours, it is reported.
Shocking puce water as nearby nickel processing plant says cause is decades of contamination in Soviet times which company is working to overcome.