acid
air
ambience
blue
bread
chemical
chimney
climate
contamination
cool
cooling
dioxide
energy
environmental
evaporate
exhaust
fabrication
factory
fuel
furnace
gas
global
greenhouse
industrial
industry
labor
manufacture
manufacturing
massive
ozone
pipe
plant
pollution
power
production
shaft
smog
smoke
smokestack
station
steam
surrounding
tall
technology
toxic
vapour
warming
white