This document discusses environmental ethics and provides definitions of key concepts. It begins by stating that ethics are important for development and societies without ethical principles can experience moral decay. It then defines concepts like values, morals, environment, ecology, ecosystem, and different perspectives on environmental ethics like anthropocentrism, biocentrism, and ecocentrism. The document examines environmental ethics as the application of ethical standards to human relationships with the environment and poses example ethical dilemmas. It explores expanding ethical consideration to include animals, communities, and nature. In closing, it recommends developing a holistic perspective that preserves ecological connections.