Omsk, the capital of its oblast in the Siberian(1) Federal District of Russia(2), has 1.1 million metropolitan residents (2006). Its reputation as Siberia's greenest city--due to its gardens--does not hide its petrochemical refining industrial base, nor that it has reached its growth limit due to ecological constraints.
(1) Sibirskaya is one version of transliterated Russian.
(2) Rossiya or Rossija in strictly transliterated Russian.