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Submission + - Could Earth's Infrared Emissions be a New Renewable Energy Source? (gizmag.com)

Zothecula writes: Could it one day be possible to generate electricity from the loss of heat from Earth to outer space? A group of Harvard engineers believe so and have theorized something of a reverse photovoltaic cell to do just this. The key is using the flow of energy away from our planet to generate voltage, rather than using incoming energy as in existing solar technologies.
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Could Earth's Infrared Emissions be a New Renewable Energy Source?

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