This new edition of a widely used and cited introduction to ethics and the environment offers a broad and lively discussion of nature's future, focusing on climate change, conservation, and justice for both our contemporaries and future generations. It discusses the nature of environmental problems and their relationship to economics, religion, technology, and aesthetics. It includes incisive discussions of our moral relations with other animals, and of how animals are used in our food systems. It also provides a deep discussion of the value of nature, which takes up ecofeminist and deep ecology views as well as sentientism and biocentrism. It discusses the plurality of values, and applies this analysis to some conflicts from the author's home state of California.