Big picture: Domestic environmental laws are regulations created by individual nations to protect their environment, public health, and natural resources.
- Command-and-control regulation
- Laws that set specific limits or standards (e.g., emission limits, protected areas) enforced through penalties.
- Market-based instruments
- Economic tools like taxes, subsidies, or cap-and-trade systems that create financial incentives for environmental protection.
- Environmental Impact Assessment (EIA)
- A legal requirement to evaluate the potential environmental effects of a proposed project before it can proceed.
Examples of landmark domestic laws
- Clean Air Act (USA, 1970) — regulates air pollutant emissions
- Clean Water Act (USA, 1972) — protects surface water quality
- Endangered Species Act (USA, 1973) — protects threatened species and habitats
- EU Emissions Trading System (2005) — cap-and-trade for carbon
IB exam tip: You do not need to memorise specific country laws, but you should be able to give examples and evaluate their effectiveness.
How environmental laws are enforced
- Government agencies monitor compliance (e.g., EPA in the USA)
- Permits and licences required for polluting activities
- Fines and legal action for violations
- Public reporting requirements increase transparency
- Community monitoring and citizen science
Barriers to effective enforcement
- Lack of funding for monitoring agencies
- Political interference and lobbying by industries
- Corruption in some jurisdictions
- Difficulty monitoring remote or large areas
- Penalties may be too low to deter violations
Key concept: The polluter pays principle states that those who produce pollution should bear the costs of managing it to prevent damage to human health or the environment.
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Strengths of Regulation
- Clear standards that industries must follow
- Legal penalties create accountability
- EIAs prevent harmful projects
- Protected areas preserve biodiversity
Limitations of Regulation
- Can be costly to enforce
- May stifle economic development
- Loopholes can be exploited
- Different standards across jurisdictions
IB exam tip: When evaluating a policy, consider: who benefits, who loses, short-term vs long-term effects, and whether it addresses the root cause of the problem.
Core regulatory principles (HL vocabulary)
Command-and-Control
- Sets fixed limits or standards
- Clear legal penalties
- Predictable compliance
Market-Based Regulation
- Uses taxes or trading systems
- Encourages innovation
- More economically flexible
- Polluter Pays Principle
- Those who produce pollution should bear the costs of managing it to prevent environmental damage.
- Precautionary Principle
- Where there is risk of serious environmental harm, lack of full scientific certainty should not delay protective measures.
IB exam tip: In 9-mark evaluate questions, explicitly use these principles to structure your answer. Examiners reward correct HL terminology.