environmental
against
air
atmosphere
blue
carbon
chemical
chimney
clear
climate
cloud
co2
condensation
dioxide
dirty
dust
ecology
emissions
environment
exhaust
factory
fumes
gas
global
high
industrial
industry
isolated
manufacturing
nature
nobody
pipe
plant
pollution
power
production
sky
smog
smoke
smokestack
stack
station
steam
substance
technology
tower
toxic
vapor
warming
white