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About UNEP
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United Nations Environment Programme
Division of Technology, Industry and Economics
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Newsletter and Technical Publications

Lakes and Reservoirs vol. 2

The Watershed: Water from the Mountains into the Sea



The Short Series on Planning and Management of Lakes and Reservoirs is produced with the objective of increasing environmental awareness and education in the general public about freshwater bodies, their characteristics, interactions and man intervention. Each volume is friendly written and using colour diagrams and photographs to reinforce the text and make them more illustrative.

Volume 2 focuses on the Watershed as a whole considering its different components and the water cycle. This publication gives to the reader a short but nice overview about the rivers, lakes, wetlands, groundwater and ice caps amongst others that make together with the mountains and natural related ecosystems the watershed. Also, in this booklet the description of the water flow originated from the upstream or highlands until it reaches the sea is provided giving at the same time some explanation about the interactions with the different components of the watershed. Through this booklet a better understanding of one of the most important physical features on earth is made possible to those interested in nature as well as those who have the curiosity to better understand nature.


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  • Brochure
  • IETC Brochure


  • International Year of Forests
  • International Year of Forests


  • World Environment Day
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  • UNEP Campaign
  • UNite to Combat Climate Change