U·X·L® Encyclopedia of Water Science explores water science and issues from an international perspective. Topics covered include lakes and streams, oceans, aquatic animals, weather and climate, glaciers, wetlands, ecology, hydropower, commercial fishing, acid rain, recreation, pollution, economics, water conservation, international water law, global warming and much more. Numerous sidebars highlight significant facts and opinions, provide biographies, explain allusions and describe water-related activities. Provided in each entry are definitions for scientific terms and sources for further research. A general glossary, an index, more than 150 black-and-white photographs, and a different set of color photo inserts are included in each volume.