Big picture: The debate about whether nature has value in itself or only because of what it provides to humans is central to environmental ethics and environmental economics.
- Intrinsic value
- The value something has in itself, for its own sake, independent of its usefulness to anyone else.
- Instrumental value
- The value something has because of its usefulness as a means to achieve some other end.
- Existence value
- The value people place on knowing something exists, even if they never use or see it directly.
Intrinsic Value
- Every species has a right to exist
- Nature is valuable regardless of human use
- Supports preservation and deep ecology
- Difficult to measure or quantify economically
Instrumental Value
- Nature is valued for ecosystem services
- Justifies conservation through economics
- Easier to communicate to policymakers
- May neglect species with no obvious economic use
Link to economics (HL synthesis): Ecosystem service valuation reflects instrumental value because it assigns monetary worth to nature. An intrinsic value perspective argues that some ecosystems should be protected regardless of economic valuation, even if they provide no measurable financial benefit.
IB exam tip: In evaluate questions, explicitly contrast intrinsic and instrumental arguments. High-level responses link ethical value frameworks to economic tools such as cost-benefit analysis or ecosystem service valuation.
- Deep ecology
- A philosophical movement that argues all life forms have intrinsic value and that human interference with the natural world is excessive.
- Rights of Nature
- A legal framework that gives ecosystems or natural entities legal standing, similar to human rights.
Rights of Nature examples
- Ecuador (2008) — first country to include rights of nature in its constitution
- New Zealand (2017) — Whanganui River granted legal personhood
- Bolivia — Law of Mother Earth recognises nature's rights
- Colombia — Constitutional Court granted rights to the Atrato River
IB exam tip: Rights of Nature is a growing movement — be prepared to evaluate its effectiveness compared to traditional conservation approaches.
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How value frameworks affect conservation
- Instrumental value → prioritise species with economic value (e.g., pollinators, medicinal plants)
- Intrinsic value → protect all species equally, including those with no known use
- Flagship species approach → uses charismatic species to attract funding (instrumental)
- Ecosystem-based approach → protects whole systems for combined value
Key concept: In practice, most conservation uses a combination of intrinsic and instrumental arguments. The challenge is ensuring that species and ecosystems without obvious economic value are not neglected.