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Toyota has helped install an array of 208 repurposed nickel-metal hydride batteries from Camry Hybrids to power the Lamar Buffalo Ranch at Yellowstone National Park. The system can store 85 kilowatt-hours of energy at a time.

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Beginning this fall, used hybrid batteries that would otherwise be recycled will get a second life in Yellowstone National Park. 208 nickel-metal hydride batteries are being retired from the Toyota Camry Hybrids they once helped power and will become part of an off-the-grid energy system at Yellowstone's remote Lamar Buffalo Ranch field campus. The Lamar campus provides field seminars and other education and research in the northeastern corner of the park.

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Winter. That frigid, miserable time of the year where ice, snow and slush coat our roads and salt coats our cars. Why would you ever willingly go for a drive during the winter? Well, perhaps because no one else is going for drives. As CNN points out, winter means that some of the country's best roads have much lower levels of traffic, making a scenic drive an even more relaxing event than it might normally be.

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Drive a Nissan Leaf to see Teddy Roosevelt's "best idea," and save a geyser in the process?

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On September 12, the United Soybean Board (USB) and the U.S. Department of Energy's Central Regional Clean Cities Workshop gathered to celebrate more than 10 years of biodiesel use in the U.S. national parks system.

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The National Parks System is protecting the environment in some farsighted ways. Turns out almost 700 pieces of equipment being used by our National Parks employ alternative fuels. The Green Energy Parks Program was started at Yellowstone in 1995 and currently is in effect at 23 parks, including Mammoth Cave. Mammoth Cave uses biofuels in all of its vehicles (everything from tour busses to lawn mowers!) and refuels on-site from two 3,000 gallon biofuel tanks. No word on where the parks get the f

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