Three-fourths of American homes have air-conditioning, according to the U.S. Department of Energy website, energy.gov. That cooling consumes approximately 6 percent of all energy produced in the United States, at a cost...

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We're engulfed in choices today, from clothing to food to TV subscriptions. The light bulb aisle is no less daunting, especially when it comes to the alphabet soup of CFLs and LEDs. Which begs the burning question: What'...

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