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The joke is funny, and Rick Perry is a goof, but getting energy from Pig Manure is a valid idea.
Pig manure has alot of energy and alot of it ends up in rivers and lakes, creating pollution.
Why are you laughing at Green Energy?
Using Pig Manure for energy has all kinds of benefits. It is a great way to treat the waste, and reduces the odor. Plus the farmers now get paid for the energy they create.
Of course its not perfect and there is still more to do to perfect the technology but its a good idea, and Rick Perry, at least in this case, isn't wrong.
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