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  Put the Earth to Work

Any green home worth its weight in compost draws heavily on solar energy. Mine is equipped with all the standard offerings, such as a solar-powered boiler, the subject of my last column. Trouble is, the sun doesn't always shine. So to make up the difference during cold, dark winters and rainy spells, I'm turning to another eco-friendly energy source: my backyard.  Read more...

Source: Popular Science Magazine, September 2009

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