acid
autobahn
backlights
cars
chimney
clouds
dawn
electrical
electricity
emitting
energy
environment
exposure
factory
flue
funnel
generating
generator
global
greenhouse
headlights
heavy
highway
industry
infrastructure
kraftwerk
motorway
movement
night
plant
pollute
pollution
power
powerstation
rain
site
sky
smokestack
stripes
time
traffic
transport
work