Center for American Progress
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The Atlantic Council of the United States
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DC Department of the Environment
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U.S. Composting Council
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Department of the Interior
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U.S. Department of Agriculture (USDA)
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Earth Day Network
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US Environmental Protection Agency (EPA)
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Environmental Defense Fund
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U.S. Fish and Wildlife Service
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Green America
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U.S. Green Building Council
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National Governors Association
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WH Council on Environmental Quality
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National Park Service
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Woodrow Wilson International Center
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Natural Resources Defense Council (NRDC)
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World Resources Institute
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Resources for the Future
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World Wildlife Fund (WWF)
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Rural Community Assistance Partnership
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Worldwatch Institute
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Sierra Club
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