Unit 3: Theories of Environmental Ethics

Table of Contents


Introduction: The Spectrum of Value

This unit looks at the core question of environmental ethics: Where do we draw the line of moral value?

The traditional (Western) view was that only humans have intrinsic value, and nature only has instrumental value. These theories challenge that.

[Image of a diagram showing concentric circles of moral value: Anthropocentrism (humans), Biocentrism (all life), Ecocentrism (all ecosystems)]

Anthropocentrism (Human-Centered)

Anthropocentrism (from Greek anthropos, "human") is the traditional view that humans are the center of the moral universe.


Biocentrism (Life-Centered)

Biocentrism (from Greek bios, "life") is a theory that extends intrinsic value to all individual living things.


Ecocentrism (Ecosystem-Centered)

Ecocentrism (from Greek oikos, "home" or "ecosystem") is a theory that extends intrinsic value to the entire ecosystem as a whole.

Comparison Table
Theory What has Intrinsic Value? Viewpoint
Anthropocentrism Humans only Instrumental (for nature)
Biocentrism All *individual* living things Individualistic
Ecocentrism The *ecosystem as a whole* (including non-living parts) Holistic