environmental
air
chemical
chimney
co2
company
cooling
crude
dioxide
dioxin
distill
distillation
distillery
energy
environment
equipment
europe
factory
fuel
gas
gasoline
global
greenhouse
holland
industrial
industry
kyoto
metal
oil
petrol
pipe
plant
pollute
pollution
power
production
refinery
rotterdam
sky
smokestack
stack
steel
technology
tower
warming
working