What is it?

Environmental ethics is the branch of philosophy that studies the moral relationship between human beings and the natural world. At its core, it challenges the traditional, human-centered (anthropocentric) view that only humans have moral value, arguing instead that we should extend ethical consideration to animals, plants, and entire ecosystems.

It moves beyond questions of what's good for people and asks what's good for the planet as a whole.

Core Questions

Environmental ethics grapples with fundamental questions about our place in the world and our responsibilities to it. Common questions include:

Value and Moral Standing: Do animals, trees, rivers, and mountains have a right to exist for their own sake, or is their value based only on their usefulness to humans?
Human Obligation: What are our moral duties to the environment? Do we have a responsibility to protect endangered species or preserve wilderness?
Intergenerational Justice: What moral obligations do we have to future human generations regarding the health of the planet?
Scope of Morality: Where do we draw the line for moral consideration? Should we prioritize sentient animals that can feel pain over non-sentient plants or entire ecosystems?
Human-Nature Relationship: Should humanity act as a steward, a master, or a simple citizen of the natural world?

Ethics + Values

In environmental ethics, we use two key types of theories to challenge the traditional human-centered worldview, or anthropocentrism. First, normative ethical theories provide frameworks for how we should act, extending moral consideration beyond humans to the natural world. Second, value theories tackle the fundamental question of why nature matters, debating whether its value is for our use or for its own sake.

These two approaches work together. Normative theories like the ones below are applied to environmental issues:

Consequentialism looks at the bottom line. An action is right if it leads to the best overall outcome, such as maximizing the ecological well-being for the greatest number of beings, both human and non-human.
Deontology focuses on our moral duties. From this perspective, we might have a fundamental duty to protect a species or preserve a wilderness, regardless of any practical benefit to ourselves.
Virtue Ethics shifts the focus from actions to character. It asks what a virtuous person would do, encouraging us to cultivate traits like compassion and reverence for nature, so that our choices naturally become more ethical.
Feminist Care Ethics emphasizes relationships and interdependence. It moves away from abstract rules to focus on our responsibilities within a web of connections, urging a nurturing and caring relationship with the natural world.

Underpinning all of this is the core debate from value theory: Does nature have instrumental value or intrinsic value? To see nature as merely a tool for human needs is to give it instrumental value. Environmental ethics, however, argues that nature possesses intrinsic value—that it is an end in itself.

This shift away from anthropocentrism leads to several views: sentiocentrism, which grants moral standing to all sentient beings capable of feeling pain or pleasure; biocentrism, which extends it to all living things; and ecocentrism, which values entire ecosystems. Each approach gives the natural world the moral standing it needs to be treated fairly.