Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.
Lakes are discrete, largely isolated ecosystems in which the interplay between physical, biogeochemical and organismal processes can be studied, understood, and put to use in effective management. Read more about it in this article.
HAIRSTON, N.G. FUSSMANN, G.F. (2002): Lake Ecosystems. New York: Macmillan Publishers Ltd URL [Accessed: 14.12.2011]