燃やす
air
atmosphere
blue
chemical
chimney
climate
coal
dioxide
ecology
electricity
emissions
energy
enterprise
environment
evaporation
exhaust
factory
fuel
fuel oil
fumes
gas
generate
global
greenhouse effect
heat
high
industrial
industrial area
industry
pipe
pipes
plant
pollution
power
red
sky
smog
smoke
smokestack
stack
station
steam
technical
technology
tower
toxic
urban
warming
white