A large number of industrial chimneys with smoke billowing out.
Palabras clave
city,
pipe,
technology,
power,
gas,
fume,
coal,
ecology,
environmental,
plant,
tower,
emission,
vapour,
environment,
industrial,
fog,
sky,
chemical,
steam,
dirty,
pollution,
smoke,
smog,
factory,
toxic,
climate,
warming,
energy,
emission,
station
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