This volume concerns itself with the ethical principles and concepts relating to the environment: nature, resources and the planet. This is placed in the context of ethical theory, and consideration is given to the way these values have transformed received ethical traditions. Issues include the intrinsic value of nonhuman species, obligations to future generations, and the aesthetic needs of humanity. Both the universal responsibilities and their application are investigated. The international responsibilities to the planet are seen in the context of some of the most alarming future scenarios: limited access to water, the changing global climate, population explosion, the destruction of ecosystems, and even the extinction of humanity