| "The story of phosphorus: Global food security and food for thought" | "Low Carbon Desalination: Status and Research, Development, and Demonstration Needs, Report of a workshop conducted at the Massachusetts Institute of Technology in association with the Global Clean Water Desalination Alliance" |
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| Jan Hamrin, Chapter 1, The Renewable Energy Policy Manual, Organization of American States, undated | Rural Science Graduates Association 2002 |
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| National Academy of Science, National Research Council, Washington D | Paul Weiss chairman of renewable resources study 1962 |
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