Russian government proposes intriguing solution if Ulaanbaatar halts plans for hydropower dams on the Selenga River.
Russian President to 'personally' monitor situation amid fears projects could alter river flows and harm Baikal eco-system.
Environmentalists call for World Bank to halt funding for projects that could alter flow of rivers leading into lake with water nearing critical low.
Prime minister raises the issue on sidelines of the Asia-Europe Meeting (ASEM) in Ulaanbaatar.