Top 10 Carbon Pricing Questions Answered

A simple guide to carbon pricing, including taxes, emissions trading, and global climate policy basics.

1. What is carbon pricing?

Carbon pricing refers to setting costs on the emission of greenhouse gases (GHGs) in order to provide a market incentive for carbon reduction; it helps ensure that those who generate GHG emissions are the parties responsible for reducing them. With carbon pricing, the ‘polluter pays’. 

2. Is a carbon tax the same as carbon pricing?

A carbon tax is one approach to carbon pricing. It's a specific policy measure in which a tax is imposed on the carbon content of (usually) fossil fuels, based on the amount of carbon dioxide (CO2) and other GHGs emitted when these fuels are burned (directly or well-to-wheel).

It is typically levied as a per-unit tax, e.g. dollars per metric tonne of CO2 emissions. It creates a financial incentive for entities to reduce their emissions because doing so would lead to lower tax payments.

3. What is carbon trading?

Carbon trading, otherwise known as emissions trading, is, alongside a carbon tax, the other main type of carbon pricing. In this system, a regulatory or government body sets a cap on the total amount of GHG emissions that can be emitted over a specified time frame. Organisations are then allocated a specific number of carbon credits, which allows them to emit a certain quantity of GHGs. If the organisation does not emit the full quantity, they can sell their remaining credits. Conversely, if they emit more, they can buy credits in the carbon credit marketplace.  There are numerous carbon markets around the world, and some are linked to allow trading between schemes.

4. Does carbon pricing reduce emissions?

Carbon pricing provides a financial incentive for organisations to reduce their GHG emissions, however it is not the only tool employed for decarbonisation.

Listed below are some of the benefits of carbon pricing:

• Incentivising Emissions Reduction: Carbon pricing provides a direct economic incentive for organisations to reduce their emissions to avoid higher costs associated with taxes or purchasing additional allowances.
• Driving Investment in Clean Technologies: The prospect of carbon pricing encourages investments in energy efficiency, renewable energy, and other low-carbon technologies.
• Accelerating Innovation: Carbon pricing can spur innovation in emissions reduction technologies and practices, as organisations seek ways to lower their emissions and costs simultaneously.
• Changing Consumer Behaviour: Higher carbon prices can lead to changes in consumer behaviour, such as the adoption of energy-efficient products or a shift toward low-carbon transportation options.
• Revenue for Climate Initiatives: The revenue generated from carbon pricing, whether through taxes or allowance auctions, can be reinvested in climate mitigation and adaptation measures, further contributing to emissions reductions.

For carbon pricing to be most effective in reducing GHG emissions, it should be part of a comprehensive climate policy framework that includes regulations, incentives for clean energy adoption, and support for research and development of green technologies. 

5. How is a carbon price set?

Carbon prices are not determined by one factor and depend on the market (compliance Vs voluntary); the specific process and elements involved can also vary depending on the jurisdiction and the policy objectives.

The first step in determining a carbon price is to establish clear environmental goals and emissions reduction targets. Policymakers need to define what they aim to achieve in terms of reducing GHG emissions and combating climate change. These goals can be based on international agreements, national commitments, or regional climate action plans.

Governmental bodies or regulatory agencies typically conduct inventories to assess the sources and quantities of GHG emissions in their jurisdiction. This inventory serves as a baseline against which progress is measured.

Policymakers also must consider the social and economic context in which carbon pricing will be implemented. This includes factors like the state of the economy, energy infrastructure, and the potential impact of carbon pricing on households, industries, and competitiveness.

The carbon price can be set based on various considerations, including the desired emissions reduction trajectory, the social cost of carbon (the economic damage caused by each additional tonne of CO2 emissions), and the carbon price needed to achieve established targets.

6. What are the drawbacks to carbon pricing?

There are several drawbacks to carbon pricing, especially as critics argue that it obfuscates the real issues driving climate change. A major concern is carbon leakage, where emissions-intensive industries shift their operations to regions with more lax regulations in order to avoid higher carbon costs.

Another concern is that carbon pricing can disproportionately impact lower income communities. Since the cost of products may increase to compensate for carbon taxes, the burden falls to the consumer. 

7. How does carbon pricing impact market competition?

The key objective of carbon pricing is to provide an economic incentive for GHG emissions reduction. Organisations that can find cost-effective ways to reduce emissions gain a competitive advantage by lowering their carbon costs.

Faced with the prospect of higher carbon costs, organisations are also incentivised to invest in cleaner technologies, energy efficiency improvements, and low-carbon alternatives. This can lead to innovation and the development of competitive advantages in the form of green technologies.

On the consumer side, the rising cost of carbon-intensive products may shift their preferences towards low-carbon alternatives. This can create new market opportunities for businesses offering sustainable and environmentally friendly products.

Carbon pricing can level the playing field for businesses by ensuring that the environmental cost of carbon emissions is internalised in the price of goods and services. Organisations that were previously able to externalise these costs may face increased competition from cleaner, more efficient businesses.

On a global scale, businesses in jurisdictions with carbon pricing may become more competitive in international markets. By adopting cleaner technologies and practices, they can meet evolving global standards and access markets with emissions reduction requirements.

8. How often do carbon prices change?

Carbon prices typically change on an annual basis for taxes, though the frequency with which carbon prices change depends on the design and specifics of the carbon pricing mechanism in place. In some cap-and-trade systems, the carbon price may change daily, hourly, or even more frequently. 

9. How many countries have adopted carbon pricing?

As of the summer of 2023, ~40 countries had adopted carbon pricing, and other jurisdictions have plans to follow suit. This number is growing, and the carbon market is also expanding globally as more countries look for mechanisms to reduce GHG emissions. 

10. How does carbon pricing fit into the Paris Agreement?

The Paris Agreement discusses carbon pricing in Article 6, which recognises that some parties, be they public or private, will choose to voluntarily measure, report, and reduce their GHG emissions.

The Agreement also requires countries to regularly report on their emissions and progress toward their Nationally Determined Contributions (NDCs). Carbon pricing mechanisms often involve robust monitoring, reporting, and verification (MRV) systems, which contribute to the transparency required under the Agreement.

References:

About Carbon Pricing | UNFCCC

Five Things to Know about Carbon Pricing

What is the Impact of Carbon Pricing on Competitiveness?