Photos and story by Leonid Kaganov.
The link above describes (in Russian) a massive volunteer cleanup effort that recently took place at Lake Baikal. The event was organized by Russian energy group En+ and drew 1500 volunteers from all over Russia and the world, who traveled to Siberia at their own expense to participate. Summer brings many tourists to Lake Baikal, and with the tourists comes litter. This year was the fourth in a row in which a coordinated group of volunteers has come together to clean up that litter in an effort to preserve pristine Lake Baikal — the Pearl of Siberia.
Lake Baikal Dimensions of Biodiversity 