algae

background

bag

beach

bottle

clean

close

coast

danger

dangerous

day

disaster

dump

ecological

ecology

environment

feet

garbage

global

glove

help

holding

industry

junk

landscape

legs

litter

marine

motion

nature

ocean

outdoor

person

pick

plastic

pollution

problem

protection

river

save

shore

slow

sunset

tide

trash

video

volunteer

volunteering

waste

water

world