Ohio State University is now starting an environmental study abroad program dealing with environmental issues in Siberia, as well as language and culture. The program is based in Tomsk, but will include trips to other important sites, including Baikal - the most important of them all. The program looks like a good introduction to environmental issues, as well as Russian language and culture. The deadline for applications this year has passed, but hopefully the program will be a success and continue in the future, introducing more people to the beauty of Baikal.
Here's the program's website which contains all the basic information, hopefully they'll update it with pictures of their travels this summer:
http://cfaes.osu.edu/current-students/get-involved/folder.2007-11-06.3186332430/russia/
http://cfaes.osu.edu/current-students/get-involved/folder.2007-11-06.3186332430/russia/