Renewable energy doesn’t necessarily mean clean energy. Renewable energy can easily be confused as being good for the environment because it is renewable. Take the gas produced in landfills for example. The methane gas produced in landfills is renewable. However, two of the major components in landfill gas are carbon dioxide and methane, both of which are greenhouse gases. Another misunderstanding about landfill gas is that it is the same as natural gas. Natural gas is 80-99% methane and landfill gas is about 40-60% methane and 40-60% carbon dioxide.
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