Environmental ethics is a form of philosophy that considers the ways humans interact with their natural environment and with nonhuman animals. This includes a moral consideration of the human approach to natural resources.
Ethics are a branch of philosophy that considers moral values, obligations and other factors relating to human conduct and relationships. Environmental ethics applies this style of philosophical consideration to the ways humans interact with the earth, natural resources and nonhuman animals, including domestic animals such as dairy cows and wild animals including whales. Studying environmental ethics involves a consideration of the morality of how humans exist in the world. The discipline was largely developed in the late-mid 20th century.