Ecosystems introduces the basic concepts and processes in the ecosystem and explores its role in solving environmental problems. Examining the development of the ecosystem concept, the book explains how ecosystems function and analyzes the complex interactions between life and its physical environment. Presenting examples from all parts of the world within lively case studies and illustrations, Ecosystems focuses on 'real world' problems and topical and controversial issues, particularly on human impacts on the natural environment, and the consequences of environmental change.