Call to locals and tourists to aid experts counter the green gunge 'polluting' world's deepest lake.
Challenge to polar doom warning from respected international expert Professor Peter Wadhams of Cambridge University.
The lake's level is falling, and Mongolian hydro plans would disrupt inflows, and could cause a 'tsunami' of water, say campaigners.
In beach resort of Listvyanka alone, 98 contaminated streams are disgorging sewage and chemical waste into the pristine waters of the world's oldest lake.
Part of Vasyugan Mire - the largest bog in the world - is to become a natural reserve this year, say reports.