Q: I understand we're trying to cut back on Coal and Nuclear Energy, and find other sources such as Wind... yet am unsure of the issue at hand? Does it all have to with Global Warming? I especially want to know the Political Stance on this, and what your opinion is on it... -Simple yet Detailed Answers Greatly Appreciated!
A: Renewable energy is any energy that comes from a source that is not depleted by use as fossil fuels are. It can be produced as needed from renewable resources such as corn (ethanol) or vegetable oil (biodiesel). Solar and wind power could also be considered to be renewable because there is no danger that the supply will diminish. By contrast, non-renewable energy sources such as oil and coal have limited supplies. They were created from organic material buried under tons of rock after one of the mass extinctions. When they're used up, there won't be any more unless we wait for another mass extinction, then wait a few million more years for nature to take its course. Of course we wouldn't be around to benefit from that, so it's worthwhile to look for energy sources that can be readily renewed, or will not be depleted (the sun technically isn't renewable, but we can count on it to continue providing energy for a few billion more years before its fuel runs out).
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