Alternative Energies

Wind Energy-Turbines
Photo by Monica's Dad

Hydroelectric Energy

Geothermal Energy
Photo by Janie Hernandez55

Biofuel
Photo by Alternative Heat

Solar Power
Photo by OregonDot

Hydrogen Fuel Cell
Photo by CommScope

Algae Fuel
Photo by USDA

Green Roofs
Photo by kcxd

Living Walls
Photo by Rev Stan

Tumbleweed House(Space Conservation)
Photo by Nicolas Boullosa

Green Cars
Photo by Michael Caven

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