environmental
agriculture
background
care
concept
conservation
crisis
discovery
earth
eco
ecology
energy
environment
forest
future
global
green
growth
hand
holding
hope
icon
industry
innovation
inspiration
intelligence
invention
leaf
lightbulb
natural
nature
network
outdoor
people
plant
pollution
power
protection
recycle
renewable
saving
science
sign
social
sustainability
symbol
technology
thinking
warming
water
定額
Hand holding light bulb against nature on green leaf with icons energy sources for renewable, sustainable development. Ecology concept. Elements of this image furnished by NASA.の素材 [FY310106927248]
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