human sewage

Ten Alternative Energies You May Not Have Heard Of

By Nathanael Baker on June 22, 2010

Tags: blue energy, evaporative energy, Helioculture, helium-3, hot rock power, human sewage, Mother Nature Network, Nuclear Fusion, ocean thermal energy conversion, osmotic power, Piezoelectricity, saltwater power, space-based solar power, vortex-induced vibrations

By now everyone has heard of renewable technologies like solar and wind power. But, Mother Nature Network has compiled ten practical alternative energy sources that might be flying under your radar.

Here they are:

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