environmental
atmosphere
bin
bio
blue
bottle
box
can
cap
cleaning
cleanup
collect
color
concept
conceptual
cover
discard
disposal
dump
dustbin
earth
ecology
empty
environment
garbage
nature
object
open
paper
plastic
pollution
protect
recycle
recycling
refuse
reuse
rubbish
save
single
social
space
storing
sunny
symbol
throw
trash
trashcan
urban
waste
wheel