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Olduvai III: Catacylsm
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Unpave low traffic roads to save energy and money

Unpave low traffic roads to save energy and money The U.S. has 4.1 million miles of roads (1.9 million paved, 2.2 million gravel). About 3 million miles of roads have less than 2,000 vehicles a day, less than 15% of all traffic. The paved portion of these low-volume roads ought to be evaluated for their […]

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Olduvai IV: Courage
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Olduvai II: Exodus
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