This new edition includes new and substantially revised entries that reflect the latest information available. Essays cover a wide variety of topics, including endangered animal species, air pollution, national parks, environmental legislation, oil spills, alternative energy sources, and global climate change. Also covers topics related to human environments such as sick building syndrome, noise pollution, smog, and urban planning. Each essay provides a definition of the topic, along with any relevant dates, a summary of the environmental significance, and a list of suggested further readings to aid students who are seeking resources for more in-depth information on the topic at hand. All articles include cross-references to related articles in the set. The title includes photographs, charts, graphs, tables, and maps that illuminate the events and concepts detailed in the essays, and several useful appendixes, a comprehensive subject index, and an index of entries by category.<\\P>