abandoned
auto
automobile
autumn
background
bad
car
cover
creek
damaged
danger
dirt
dirty
discarded
disposal
dump
earth
eco
ecological
ecology
environment
forest
garbage
golden
hazard
illegal
leaves
nature
old
planet
pollute
pollution
problem
refuse
rubber
rubbish
tire
toxic
trash
tread
unfriendly
unwanted
used
vandalism
waste
water
wood
wrong