Fresh water supply crisis looms in parts of Siberia as critics accuse hydroelectric firm of 'excessive drainage' from lake.
Pristine forests around the world's oldest lake go up in flames.
Former Ukraine president's son Viktor reportedly drowned when his vehicle plunged through the ice.
Vital for making its waters so 'pure', one theory is that rising underwater methane leaks are killing off the sponge, but is there a silver lining?
Scientists say numbers in Lake Baikal reaching critical levels and say new commercial businesses could safeguard their future.
Warmer winter caused problems for Sergey whose misfortune, and quick rescue, were captured on his own hi-tech camera.
Russian President to 'personally' monitor situation amid fears projects could alter river flows and harm Baikal eco-system.
Doctors fought in vain to save Alexander Stakhanov, 35, on the frozen surface of the world's deepest lake.