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Solar Water Heating: Book Review

Solar Water Heating is the first book I’ve seen that focuses solely on solar water heating. It’s a technique that’s been practiced since ancient times, but until now there’s been strangely few resources on the topic for a North American audience. The author, Bob Ramlow, examines state-of-the-art solar heating systems. He covers not only solar […]

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Best and Worst Personal Care Products: Ratings

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A while ago we published a link to a site that rates Personal Care Products. We had some requests from readers who were interested in finding the report, so here is an update. The EWG has also published the most comprehensive study on chemical contaminants found in humans. Blood and urine from nine people was […]

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The Best Electric Boat Motors

The Best Electric Boat Motors

The Best Electric Boat Motors: Minn Kota Endura C2 30 ($99) Minn Kota Endura C2 55 ($257) MotorGuide VariMAX V55 – Freshwater, Pontoon Mount ($414) Torqeedo Travel 1003 ($1,999) Compared to gasoline-powered boat motors, electric outboard motors provide quieter operation, no exhaust fumes and zero emissions. Electrics are great as the primary means of propulsion […]

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Australian Island Using Flow Batteries To Store Wind Power

King Island is a small island off the Australian coast, near Tasmania. King Island isn’t connected to the mainland power grid, and apart from its own small wind farm it relied for a long time on diesel generators for its electricity. That changed in 2003 when the local utility company installed a mammoth rechargeable battery […]

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Copenhagen Waste-To-Energy Plant Will Multi-Function As Ski Slope

Copenhagen Waste-to-Energy Plant Multi-Functions As Ski Slope

Copenhagen residents will soon be able hit the slopes, not on a ski mountain, but on top of a waste-to-energy plant. Looking to replace their current 40 year old industrial plant, Amagerforbraending held an international competition and unanimously chose this ski slope design by Bjarke Ingels Group (BIG) in an effort to turn what is […]

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