activist
agriculture
altruism
attitude
awareness
background
bag
bottle
care
childhood
clean
cleaning
cleanup
collect
concept
container
copy space
dump
earth
ecology
efficiency
environment
forest
garbage
garden
global
green
hand
junk
litter
man
nature
outdoor
package
park
people
person
picking
planet
plastic
pollution
recycle
recycling
rubbish
save
together
trash
volunteer
waste
waste bag