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Source: Colorado School of Public Health, 2012
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Source: Boulder Weekly, 3/22/12
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Source: Think Progress, 3/21/12
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Source: The Colorado Independent, 3/20/12
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Source: Durango Herald, 3/20/12
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Source: Huffington Post, 3/19/12
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Source: Boulder Daily Camera, 2/28/12
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Source: Environmental Working Group, 2/22/12
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Source: Longmont Times Call, 2/21/12
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Source: Environment News Service, 2/16/12
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Source: Associated Press, 1/2/12
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Source: Denver Post, 12/13/11
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