forest bathing
big tree
bright
carbon dioxide reduction
chlorophyll
clean
clean energy
ecology
energy
environment
environmental problems
environmental protection
faith
forest
forest protection
fresh
fresh green
garden
ginkgo
global warming prevention
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health
japan
landscape
leaf
light
looking up
natural energy
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negative ion
park
photosynthesis
plant
qigong
recreation
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regeneration
relaxation
religion
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sunlight
tree
vitality