environmental
background
bag
blue sky
bottle
canal
catastrophe
contamination
dirty
dirty water
disaster
disposal
dump
dumping
ecological
ecology
environment
fabric
garbage
heap
household
industry
junk
landfill
litter
living area
management
nature
paper
pile
plastic
pollution
recycle
recycling
refuse
river
rubbish
scrap
site
soil
street
toxic
trash
waste
yard