The remarkable rescue and evacuation effort was needed because of a severe break-up in the ice sheet due to global warming.
Thermometers go above zero in places where the winter should be 20 or 30 degrees colder.
Satellites show giant hole ringed by 20 'baby craters'.
Enough joking. New NASA-Russian research is leading to concern that global warming is causing truly disturbing changes to the virgin forests of northern Russia.
A quarter of all Russian forests, 89% of stocks in Sakha Republic, could be left to burn, even though they are essential to fight global warming.
Putin fires top official in Russian Far East, and calls for Investigative Committee to check how authorities performing.
An expedition is underway to locate and analyse deposits of methane in 'underwater permafrost' in the seas of Okhotsk and Japan.
Warning of methane blasts in Kara Sea adjacent to Yamal craters caused by gas eruptions associated with melting permafrost due to global warming.
These extraordinary pictures give graphic new evidence of climate change.
Worried about the rapid destruction of permafrost from global warming? Here's how you can counter it by restoring the woolly mammoth habitat.