Vice Premier sees scope to make Arctic 'ours forever' with plans to harness resources and help protect fragile environment.
Shocking pictures reveal colour of Daldykan River with locals claiming the waste from a nickel plant is to blame.
International researchers have gleaned these extraordinary hidden scientific secrets by drilling 318 metres into a unique lake in northeastern Siberia.
Yet nickel capital Norilsk - the city with the highest industrial emissions - does not feature in the top ten.
Besides, it is impossible to halt global warming which has been underway for many decades, insists the president.
Image of 'polluted red river' caused shock but Nornickel stresses it is committed to cleaning up environment, and there will be no repeat.
Russian ecologist says his undercover trip shows Arctic ecosystem is irreversibly damaged, as whistleblower in ecological watchdog quits and leaves town.
Major bid to check radioactive waste dump area in Arctic archipelago.
Both Greenpeace and the World Wildlife Fund are expressing grave concern at the risk of contamination in the Pechora Sea.
Fear that thawing permafrost caused damage to storage tank.