explosion
environmental
acid
architecture
arid
building
cancer
carbon
chemical
clouds
contamination
corporate
crack
crisis
danger
destruction
dirty
dry
dryness
dust
earth
ecology
emission
energy
factory
flames
fume
future
gas
generate
global
hell
hellish
industry
land
noise
ozone
poison
pollute
polluting
pollution
power
sky
smoke
smoke stacks
soil
steam
steel
toxic
vapor
warming
waste