For much of Idaho's history, we have turned to the force of falling water to satisfy our energy needs. But today we are a net importer of energy. We must now supplement the electricity generated by our hydropower dams with power created by fossil fuel plants from other states. As pressure mounts to curb carbon dioxide emissions, many are suggesting that Idaho needs to emphasize renewable energy, like wind, solar, and geothermal. Outdoor Idaho explores the challenges and the opportunities of being powered by nature.