air pollution
Palabras clave
air pollution,
emission,
coal,
fossil,
industry,
smokestack,
toxic,
power plant,
carbon,
air,
atmosphere,
blue,
chimney,
climate,
cloud,
dirty,
environment,
exhaust,
factory,
fume,
global warming,
industrial,
pollution,
production,
sky,
smog,
smoke,
steam,
white