As a branch of applied ethics, environmental ethics studies the interaction between human and nature and the challenges unethical action of human being with regard to its surrounding environment brought about. The aim of this paper is to point out some of the major approaches are taken into account by environmental ethics scholars and review the evolutionary path of environmental ethics in a historical context. Our goal here is to construct a comprehensive and cohesive picture of this field of study to not only draw readers in mind the interest of environmental ethics, but also make them familiar with the most important issues concerned in environmental ethics.
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