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Alternative energy sources are needed to replace fossil fuels and reduce environmental damage from pollution. Fossil fuel use is rapidly depleting non-renewable resources and harming the ozone layer, affecting the climate. New renewable energy concepts being developed include generating power from algae, solar wind, harnessing the Earth's rotation, and an 8-wheel generator that uses both wind and water. These future energy sources will be renewable, eco-friendly, reduce waste, improve health and the environment, provide stable prices, and increase national security.





