
Pollution permits, also known as cap-and-trade, are a market-based incentive strategy for managing pollution. They are a type of government-created license that regulates the level of a particular activity, such as pollution. The permits give companies the right to emit a certain amount of pollutants and they can be bought, sold, or traded. If a company pollutes less than its permit allows, it can sell its unused permits to another company that exceeds its own limit. The aim of this strategy is to reduce pollution and the external costs associated with it. However, critics argue that trading pollution permits does nothing to reduce pollution and may even work against it by reducing the incentive to adopt less-polluting technologies.
| Characteristics | Values |
|---|---|
| Goal | Similar to carbon tax |
| Aim | Increase the cost of producing pollution and create an incentive to reduce the quantity of pollution |
| Mechanism | Firms can trade the right to pollute through emissions trading |
| Rights | Firms can reduce emissions by relying on renewable energy, reducing usage, employing new technologies, or developing other strategies |
| Trading | Firms can sell permits to other firms, or save them to cover emissions in the future |
| Supply | The government may respond by steadily reducing the supply of permits |
| Demand | Over time, the existence of pollution permits should reduce demand for pollution |
| Global scale | Rich developed countries can buy permits from less developed countries |
| Criticism | Trading pollution permits does nothing to reduce pollution and shifts it from one region to another |
| Allocation | Agencies must decide who is eligible to purchase permits |
| Market | Permit brokers and some form of trading exchange facilitate transactions |
| License | Regulates the level of a particular activity |
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What You'll Learn

Pollution permits are a type of government-created license
Marketable permitting programs can take several forms. One approach is the “cap-and-trade" program, where regulators set a limit on the total amount of activity that can occur. This cap is typically set based on the desired level of pollution reduction, and permits are then allocated to companies, granting them the right to emit a specified amount of pollution. Companies that reduce their emissions below the allotted amount can sell their excess permits to other companies, creating a market for pollution rights. This approach is intended to provide incentives for companies to reduce their pollution levels and innovate in pollution control strategies.
Another type of marketable permit program is the “credit trading" system. In this system, regulators set relative goals, such as no net increase in emissions or property development. Entities that seek to increase their emissions or develop property must then purchase offsetting credits from third-party sellers, which are verified by regulators. Credits can be earned by parties that voluntarily limit their regulated activities beyond the required amount. Credit systems can also be combined with cap-and-trade programs, allowing unregulated sources to sell verified credits on the market.
The allocation of permits can be based on various factors, such as historical emission rates, past fuel use, or the amount of electricity produced. The eligibility to purchase permits can also vary, with some programs restricting sales to regulated entities, while others allow non-regulated parties like brokers or the general public to participate in the market.
While pollution permit trading is intended to reduce pollution and provide incentives for companies to innovate, there are critics who argue that it may not effectively reduce pollution. They suggest that trading pollution rights may simply shift pollution from one region to another, particularly to poorer areas, without providing the necessary incentives to adopt less-polluting technologies. Additionally, the initial allocation of permits can have significant economic impacts, particularly in a globalized context, where wealth transfers can occur between countries.
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The aim is to reduce pollution and its associated costs
Pollution permits are a type of market-based, government-created license that regulates the level of a particular activity, such as clean air by limiting pollution. They give firms the legal right to pollute a certain amount, for example, 100 units of carbon dioxide per year. If a firm produces less pollution, it can sell its permits to other firms. However, if it produces more pollution, it must buy permits from other firms or the government. This creates a market for pollution permits, with the price set by demand and supply.
The aim of pollution permits is to provide market incentives for firms to reduce pollution and reduce the external costs associated with it. Over time, the existence of pollution permits should reduce the demand for pollution. Firms will try to avoid paying the cost and will find a way to reduce pollution. As demand for permits falls, the price of permits will also fall. In this case, the government may respond by steadily reducing the supply of permits. By steadily reducing the number of permits, the government can steadily reduce the quantity of pollution.
In the long term, a fall in demand and supply of permits leads to a decline in pollution. If firms produce carbon as a side effect of production, it is classified as a negative externality. In a free market, there is overproduction of pollution and social inefficiency. Pollution permits are a method to try and reduce output to a more socially efficient level.
However, critics argue that trading "pollution rights" does nothing to reduce pollution. The amount of pollution is established by the "cap," which is set by the EPA in an old-style "command and control" decision. The buying and selling of "pollution rights" works against pollution reduction because it reduces the incentive to search for and adopt less-polluting technical innovations. Instead of reducing pollution, the market in "pollution rights" simply moves pollution from one region to another.
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Firms can buy/sell permits based on their emissions
Pollution permits are a type of government-created license that regulates the level of a particular activity by rationing the use of a resource. They are often proposed in marketable permitting programs that regulate electricity generators, with permits distributed based on the amount of electricity produced rather than the pollution generated.
Permit trading is an incentive-based strategy for managing pollution by allowing companies to buy and sell rights to emit specific amounts of pollutants. Under this system, a regulatory body establishes a limit on total emissions and issues permits that grant the right to emit a certain quantity of pollution, typically measured over a year.
Firms can buy and sell permits based on their emissions. If a firm reduces its emissions below the number of permits it holds, it can trade or sell these permits to other firms, or save them to cover emissions in the future. This provides an incentive for energy conservation and technology innovation, which can lower the cost of compliance and yield pollution prevention benefits. On the other hand, if a firm's emissions exceed the number of permits it holds, it must buy additional permits from other firms or the government.
The price of permits is determined by supply and demand within the market. As the demand for permits falls due to reduced pollution, the price of permits will also fall. In this case, the government can respond by reducing the supply of permits, thereby reducing the overall quantity of pollution.
While the trading of pollution permits is intended to reduce pollution, some critics argue that it does not effectively reduce pollution but rather shifts it from one region or country to another.
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The market price of permits is set by demand and supply
Pollution permits are a type of market-based licence that regulates the level of a particular activity, such as limiting pollution by granting firms the right to emit a certain amount of pollutants. This creates a market for pollution rights, where companies can either use their permits to cover their emissions or reduce pollution and sell any excess permits to other firms.
The demand in the market comes from new companies beginning operations, the expansion of existing companies, and those companies that face unusually steep production costs. The market also includes permit brokers and some form of trading exchange to facilitate transactions. In addition, environmental groups or governmental units may buy and hold permits, further reducing the amount of pollution created.
The price of permits is not set by the government but by the market forces of supply and demand. This is a more efficient, less costly approach to pollution control than traditional command-and-control regulation.
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Critics argue that trading permits does not reduce pollution
The trading of pollution permits, also known as cap-and-trade, is an incentive-based strategy for managing pollution. This strategy allows companies to buy and sell the right to emit specific amounts of pollutants. A regulatory body establishes a limit on total emissions and issues permits that grant the right to emit a certain quantity of pollution, usually measured over a year.
Critics also argue that trading permits may allow for continued pollution and fail to address environmental protection adequately. For example, carbon offsetting, a component of some carbon trading schemes, enables firms to keep polluting with no guarantee that planting trees will solve the pollution problem.
Additionally, in a globalized world, multinational companies can shift production to other countries with looser environmental standards. This results in the shifting of pollution from richer countries to poorer countries, rather than a significant reduction in pollution.
Overall, critics argue that trading permits alone may not be sufficient to address the complex issue of reducing pollution and that it should be complemented by other regulatory measures.
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Frequently asked questions
A pollution permit is a type of government-created license that regulates the level of a particular activity, in this case, the level of pollution a company is allowed to produce.
Companies are granted a certain number of permits that allow them to emit a specific amount of pollutants. If a company reduces its emissions below the number of permits it holds, it can sell its excess permits to other companies. If a company produces more emissions than its permits allow, it must buy permits from other companies or the government.
The purpose of this system is to provide an incentive for companies to reduce their pollution output. If a company can sell its excess permits, it has a financial incentive to reduce its emissions. Over time, as companies buy and sell permits, the demand for permits should decrease, leading to a decline in pollution.
The market for pollution permits is not limited to corporations. In some cases, nongovernmental organizations, brokers, speculators, market facilitators, or the general public may also be allowed to participate in the buying and selling of permits.











































