Suggested tags
aerial
aerial view
building
chimney
chimney stack
chimneys
coal
communist era
cooling
cooling tower
eastern block
electric
electricity
emissions
energy
energy production
environment
environmental
factory
fuel
gas
generator
global warming
greenhouse
industrial
industrial plant
industry
iron curtain
pollution
power
power industry
power plant
production
sky
smoke
socialist era
steam
technology
tower
toxic
vapor