The former Soviet empire spanned eleven time zones and contained half the world's forests; vast deposits of oil, gas and coal; various ores; major rivers such as the Volga, Don and Angara; and extensive biodiversity. These resources and animals, as well as the people who lived in the former Soviet Union - Slavs, Armenians, Georgians, Azeris, Kazakhs and Tajiks, indigenous Nenets and Chukchi - were threatened by environmental degradation and extensive...