explosion
environmental
air
atmosphere
background
blue
catastrophe
chemical
chemicals
chernobyl
chimney
climate
cloud
contamination
damage
danger
dirty
ecology
emission
energy
environment
factory
fumes
garbage
gas
global
industrial
industry
life
litter
natural
nature
plastic
polluted
polluting
pollution
problem
rubbish
sky
smog
smoke
smokestack
steam
sunrise
technology
toxic
trash
warming
waste
water