Irkutsk officials say supplies to major city could run out but Russian government says more analysis of environmental impact needed.
Scientists say numbers in Lake Baikal reaching critical levels and say new commercial businesses could safeguard their future.
Russian government proposes intriguing solution if Ulaanbaatar halts plans for hydropower dams on the Selenga River.
Irkutsk photographer captures multi-layered columns of bubbles through crystal clear ice.
Russian President to 'personally' monitor situation amid fears projects could alter river flows and harm Baikal eco-system.
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?
Is increased tourism, or a normal natural cycle, to blame for the rapid growth of spirogyra to 50% of the coastline?
Dozens of major tremors recorded this year as scientists monitor 'unusually strong seismic activity' that will one day tear continent in half.
Warmer winter caused problems for Sergey whose misfortune, and quick rescue, were captured on his own hi-tech camera.