Today more and more freshwater bodies have become polluted by nutrients originating from agricultural, domestic and industrial sources, and thereby eutrophied. The process of eutrophication of lakes and reservoirs is very much related to how society functions, and these societal factors are rarely comprehensively addressed together with the technical ones. This book is produced with participation of 26 experts involved with the management of freshwater resources from Africa, Europe, North and South America, Asia and Oceania. Their experiences on the causes and possible ways to prevent eutrophication have been assembled here. While this publication is not intended to be a technical manual on how to prevent or solve the problem of eutrophication, it does provide a comprehensive view of the essential components and processes to address the issue effectively.

Acidification is a serious problem for many lakes in Northern Europe and Eastern North America. There are, however, clear indications that the problem of lake acidification also may become a problem in many developing countries in the coming decades. This guidebook explains in detail the relations between sources, i.e., air pollution caused by sulphur and nitrogen oxides, and their effects on lakes. Management possibilities and strategies are also discussed.