Free illustration materials

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  Solar panel
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  Tree planting-Tree planting
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  (Don't feed) (Duck)
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  (insulation performance) characters
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  Family with an eco bag
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  (Thursday) characters
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  Ruins-People who excavate fossils
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  Metal cap
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  Eel character (troublesome face)
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  Male adjusting the temperature of the air conditioner (power saving)
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  Penguins left behind on drift ice
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  Country village (depopulated)
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  (Don't feed)
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  (Don't feed) (Swan)
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  Seawater temperature rise
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  Heat island phenomenon
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  Spray can
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  (energy saving performance) characters
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  Factory
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  Collected PET bottles
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  Charging plug for electric vehicles
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  Rooftop greening
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  A person who hangs laundry suffering from air pollution
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  People who fight pollen (chainsaw)
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  Paid shopping bag
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  Water purification plant
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  Doggy bag
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  Plastic garbage
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  Pellet stove
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  Waste collection vehicle

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  Woman picking up trash
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  Mark for littering (garbage)
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  Dolphin eating garbage (environmental problems)
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  (Don't feed) (Swan)
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  Plastic garbage
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  Japanese cedar pollen
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  Thermal power plant
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  Energetic earth
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  Male adjusting the temperature of the air conditioner (power saving)
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  Power saving (unplug)
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  Various coral-coral
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  Family with an eco bag