Soviet poster 

The Soviet poster ("The smoke of chimneys is the breath of Soviet Russia") is NOT about pollution. It says that industry is a key element for Soviet Russia: working industry=chimney smoke is as important for Soviet Russia as a normal breath for a human.

BTW, intensive smoke from plant chimneys was regarded in Rissia in the beginning of the 20th century (before the October Revolution) as a sign (and a sort of an advertisement) of a successfull, intensively working enterprise. An idiom труба пониже и дым пожиже (a lower chimney and a thinner smoke) emerged from this, and it is still used, with meaning "the latter is the same as the former, but of far less scale/success/intensity". 95.221.19.247