environmental
background
bag
bottle
concept
contamination
danger
dirt
dirty
disaster
dump
dumping
earth
eco
ecological
ecology
environment
environmental pollution
forest
garbage
grass
green
ground
heap
illegal
industrial
industry
issue
junk
junkyard
landfill
litter
nature
park
pile
plastic
pollute
polluted
polluting
pollution
problem
recycle
recycling
rubbish
scrap
toxic
trash
tree
waste
wood