The environment inflames passions in people on all points of the political spectrum. Controversies over such issues as the rise of cancer in industrialized countries, climate change, and urban sprawl have skyrocketed as we recognize the impact that humans have on the environment. Many people become immersed in these controversies at a local level before they know much about the topic - the nuances of many environmental conflicts are often overlooked as the media focuses on the adversarial nature of the conflict. This reference resource provides students, teachers, librarians, and citizens as a whole with the necessary first step in understanding these hot-button issues. Each entry identifies the issue involved, who was holding various points of view or positions, where and when the conflict occurred, and explains the cultural, social, and political context and dimensions of the conflict.