Government Policies and Environmental Sustainability (HSC SSCE Economics): Revision Notes
Government Policies and Environmental Sustainability
Introduction to government intervention
Environmental sustainability has become a critical priority for policymakers worldwide in recent decades. The growing impact of climate change has fundamentally changed how governments view environmental protection. Rather than seeing it as competing with economic growth, policymakers now recognise that environmental protection is essential for sustaining long-term economic development.
Government intervention in environmental management works through two main approaches: discouraging environmentally harmful activities and providing incentives for environmentally responsible behaviour by firms and individuals. These policy tools range from complete bans on harmful products to market-based mechanisms that create financial incentives for better environmental outcomes.
The shift in thinking about environmental policy represents a fundamental change in economic philosophy. Modern governments view environmental protection not as a constraint on growth, but as a foundation for sustainable prosperity.
Bans and prohibitions
A ban represents the most extreme policy intervention available to governments. When a product or activity is banned, the government prohibits its production, sale, or use entirely. This directly eliminates the negative externalities associated with that product or activity.
Bans are highly effective but carry significant costs. They can severely impact businesses and workers whose livelihoods depend on producing the banned item. Therefore, governments typically only impose bans when a product causes severe environmental or social damage, or when suitable substitute products exist.
Governments typically only impose bans when:
- A product causes severe environmental or social damage, AND
- Suitable substitute products exist
Without these conditions, bans can cause significant economic disruption without achieving their environmental goals.
Example: Mercury in Agriculture
Since 2021, Australia has banned the sale and use of agricultural chemicals containing mercury. Previously, sugar cane farmers could use a fungicide called shirtan, despite it being banned in many other countries.
This ban prevents the release of over 5,000 kg of mercury (a harmful poison) into the environment each year, protecting both ecosystems and human health.
Example - Single-use plastics: In 2021, the NSW Government banned plastic bags, straws, cotton buds and polystyrene cups. These items all have readily available substitutes and cause particular harm when they become litter in the ocean, damaging marine life. At the international level, progress on the UN Treaty on Plastic Pollution in 2023 aims to reduce plastic pollution globally by addressing production, design and disposal, with agreement expected by 2024.
Bans can also target consumption activities rather than products. The Chinese Government's ban on importing mixed recycled materials from other countries aimed to protect China's environment and improve public health. This had major flow-on effects for Australia's recycling industry, as approximately 30% of Australia's recyclable waste was previously exported to China. The ban created an oversupply of recyclable waste, leading to recyclable materials being dumped in landfill.
Taxation and excise
Taxation offers a more flexible approach than outright bans. Rather than prohibiting a harmful activity entirely, taxes increase the cost of that activity, reducing consumption while still allowing it to occur.
The key economic principle behind environmental taxes is internalising externalities. This means requiring the firm or individual responsible for creating an externality to pay for some or all of its costs. Without such taxes, these costs would be borne by society as a whole rather than by those creating the problem.
Example: Fuel Excise - Internalising Road Use Costs
The Commonwealth Government imposes a tax or excise on fuels such as petrol. This tax forces motor vehicle owners to pay some of the costs associated with building and maintaining roads and managing traffic.
Without this tax, these costs would fall entirely on general taxpayers, regardless of whether they use roads or contribute to traffic congestion. The excise thus internalises the externality by making road users pay for the costs they create.
Taxes create a price signal that encourages consumers to reduce their consumption of harmful goods and services. They also generate revenue that governments can use to address environmental problems or fund alternative solutions.
Subsidies and government funding
While taxes discourage harmful activities, subsidies encourage beneficial ones. Governments can use subsidies to make environmentally-friendly goods and services more affordable and attractive to consumers and businesses.
Example - Public transport: All Australian cities have subsidised public transport services including buses, trains and ferries. These subsidies make public transport cheaper than it would otherwise be, offering individuals an alternative to using motor vehicles. This reduces road congestion, air pollution, and carbon emissions.
Government funding also accelerates the introduction of new environmental technologies that have high establishment costs. These technologies might not be commercially viable without initial government support, even though they could become cost-effective once established at scale.
Example: Powering Australia Technology Fund
The Australian Government invested $500 million in this fund to help businesses develop innovative projects and technologies to reduce emissions.
This funding supports the development of clean energy technologies and emissions reduction strategies that might not attract sufficient private investment on their own, helping to overcome the initial barriers to adoption of new environmental technologies.
Direct provision of public goods
Some environmental services qualify as public goods - they benefit society broadly but may not be profitable for private companies to provide. Even with subsidies, these services might be under-supplied by the market. In such cases, governments may need to provide these services directly.
Example - Threatened Species Recovery Hub: The Australian Government operated this hub during the 2010s to support research on threatened species in Australia and help prevent the extinction of at-risk plants and animals. This work might not be viable as a privately funded venture because the benefits are spread across all of society rather than captured by a single organisation.
Example - Snowy Hydro expansion: While governments have generally shifted toward market-based mechanisms, direct provision remains important in some cases. The expansion of Australia's renewable energy Snowy Hydro Scheme, jointly owned by the Commonwealth, NSW and Victorian Governments, is expected to come into operation in 2028. It will expand generation capacity by 50%, providing power for an additional 500,000 homes.
Monitoring and measurement
Effective environmental policy requires accurate data about environmental conditions and trends. Governments invest in monitoring and measuring environmental changes to inform policy decisions and assess whether current policies are working.
State of the Environment report: The Commonwealth Government publishes this report every five years, documenting changes in key areas of Australia's environment including atmosphere, biodiversity, coasts, marine environment, inland water, land, heritage, Antarctic environment and built environment.
2021 State of the Environment Report - Concerning Findings
"Overall, the state and trend of the environment of Australia are poor and deteriorating as a result of increasing pressures from climate change, habitat loss, invasive species, pollution and resource extraction."
Each aspect of Australia's environment is under increasing pressure or deteriorating, and government action has been insufficient to reverse these trends.
Australian Environmental-Economic Accounts: The Australian Bureau of Statistics has started recording these accounts, which measure Australia's stock of environmental assets alongside traditional economic measures. This provides a more complete picture of Australia's wealth and resources.
Environment Information Australia: The 2023-24 Budget included over $50 million to establish this independent office, which will provide a central authoritative source of environmental information. Better quality data gives governments superior information about the trade-offs involved in policy decisions, particularly where there may be adverse economic or environmental consequences.
Market-based mechanisms: the policy shift
Over recent decades, governments have shifted away from using outright bans and directly providing public goods toward using market-based mechanisms such as taxes and subsidies. Market mechanisms work with economic incentives rather than against them, encouraging businesses and individuals to find the most cost-effective ways to achieve environmental goals.
This shift reflects recognition that market-based approaches can be more efficient and flexible than direct regulation. Rather than prescribing exactly how businesses must reduce pollution, market mechanisms set a price on pollution and let businesses decide how best to respond.
Why Market-Based Mechanisms?
Market-based approaches offer several advantages over direct regulation:
- They allow businesses to find the most cost-effective solutions for their circumstances
- They create incentives for innovation and technological development
- They provide flexibility while still achieving environmental goals
- They avoid the need for government to prescribe specific technologies or methods
Case study: towards net zero
Market-based mechanisms are central to Australia's commitment to achieve net-zero emissions by 2050. The Safeguard Mechanism, reformed in July 2023, exemplifies this approach.
Case Study: The Safeguard Mechanism
While the mechanism has existed since 2016, the 2023 reforms introduced stricter limits on emissions and stronger incentives for emissions reductions.
How it works: Each year until 2030, approximately 215 of Australia's largest industrial emitters must cut emissions by an average of 4.9% per year.
Carbon credits system: If a business exceeds its emissions cap, it can purchase carbon credits to reduce its net emissions. Government-held carbon credits are available at a capped price of $75 per tonne of emissions. This capped price increases annually by inflation plus 2%, preventing sudden price spikes while maintaining incentives for emissions reduction.
Market incentives: This carbon price creates a market-based mechanism that incentivises businesses to innovate and develop lower-cost ways to reduce their emissions. Businesses can choose whether to invest in emissions reduction technology, change their production processes, or purchase carbon credits - whichever option is most cost-effective for their circumstances.
Time lags in environmental policy
Understanding the temporal nature of environmental problems helps explain why governments sometimes delay action. Environmental problems typically take years or decades to emerge, and solutions also take many years to have their full impact.
The Political Challenge of Time Lags
Environmental problems are often less urgent than other issues facing government, and the results of policy actions are often less immediate.
A government that invests heavily in environmental policy may not see the benefits during its term in office, while the costs and disruptions are felt immediately.
This time lag problem can lead to insufficient action on environmental issues, even when the long-term benefits of action would significantly outweigh the costs.
Remember!
Key Points to Remember:
Main policy tools:
- Governments use multiple policy tools to achieve environmental objectives: bans, taxes, subsidies, direct provision, and monitoring
- Internalising externalities means making polluters pay for the environmental costs they create, typically through taxation
- Australia's environment is deteriorating according to the 2021 State of the Environment report, requiring stronger policy responses
- The Safeguard Mechanism uses market-based approaches, requiring 215 major emitters to cut emissions by 4.9% annually until 2030, with carbon credits available at $75/tonne
- Modern environmental policy has shifted toward market-based mechanisms rather than direct regulation, as these can be more efficient and flexible
Key terms:
- Externalities: Costs or benefits affecting third parties not directly involved in an economic transaction
- Public goods: Goods or services that benefit society broadly but may not be profitable for private provision
- Market-based mechanisms: Policy tools that use price signals and economic incentives to achieve environmental goals
- Carbon credits: Permits allowing businesses to emit a certain amount of carbon, which can be traded between businesses
- Net-zero emissions: Achieving a balance between greenhouse gas emissions produced and emissions removed from the atmosphere
Critical frameworks:
- Safeguard Mechanism: 215 emitters 4.9% annual reduction = net-zero by 2050
- Carbon price formula: $75/tonne + (inflation + 2%) annually