activist

care

clean

cleaning

closeup

collecting

community

earth

eco

ecologic

ecological

ecology

ecosystem

environment

environmental

female

forest

garbage

green

help

litter

male

man

material

nature

organization

outdoors

park

participation

person

picking

plastic

pollution

preservation

project

protection

recycling

resource

responsibility

rubbish

save

social

society

together

trash

volunteer

volunteering

waste

welfare

wildlife