Giant holes created when pingos erupted after filling with gas.
Permanent patrols commence led by the heavy nuclear-powered guided-missile cruiser Pyotr Velikiy.
RusHydro, RosGeologiya and Transneft 'to rebase from Moscow to the Far East'.
High levels of ‘fire ice’ trapped in permafrost may turn Russia into a global leader of new gas sources.
Rampaging knifeman is shot dead by security services after shocking incident in oil city Surgut.
More craters expected to form due to such eruptions as permafrost melts - and they ARE caused by global warming releasing methane gas.
Business leaders on island state see significant opportunities as Moscow looks to Siberia and Far East for investment.
The Chinese media - and even more the country's social media - saw glamorous new first lady Peng Liyuan as the star of the summit.