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    • Amazon Basin: GIWA regional assessment 

      United Nations Environment Programme;GEF; (UNEP, 2004)
      The Amazon Basin is the largest basin on the planet and also one of the least understood. Its drainage area covers more than one third of the South American continent, and its discharge contributes almost one fifth of ...
    • Lake chad basin;GIWA Regional assessment 43 

      United Nations Environment Programme (UNEP, 2004)
      This report presents the results of the Global International Waters Assessment (GIWA) of the transboundary waters of the Lake Chad Basin. This and the subsequent chapter offer a background that describes the impetus behind ...