For many years, industries have emitted carbon into the atmosphere without consequence. Many argue that there should be a price for pollution, but how do we determine that price?
As the world’s climate crisis worsens, a new concept is emerging: carbon pricing. This approach turns an overwhelming environmental debt into a practical method for revitalizing the global economy. It is a policy that requires us to pay for our pollution, offering a way to accelerate a greener future.
What is Carbon Pricing?
Carbon pricing is a climate policy tool that assigns a cost to greenhouse gas (GHG) emissions, especially carbon dioxide (CO₂). These emissions are a major driver of global warming and cause a range of environmental and economic problems like damaged crops, health issues from extreme heat, and property loss due to floods and rising sea levels. Normally, society bears these costs, but carbon pricing shifts the responsibility to the people or companies that produce the emissions.
Why the need for Carbon Pricing?
The rationale behind carbon pricing lies in its ability to correct a market failure by assigning a cost to greenhouse gas emissions, which have historically been emitted without financial consequence despite causing significant harm to the environment, human health, and the economy. By putting a price on carbon, this policy tool internalizes the external costs of climate change, holding polluters financially accountable and creating a clear economic incentive to reduce emissions. It encourages innovation, supports cleaner alternatives, and offers a flexible, cost-effective path to decarbonization
How it works
Carbon pricing comprises two mechanisms in which prices are put on carbon. They are the Carbon Tax and the Emissions Trading System/ cap and trade
Carbon Tax also known as carbon levies involves placing a direct tax on carbon dioxide emissions. The tax rate is usually determined based on the carbon intensity of activities or sectors. Carbon taxes offer a straightforward and transparent way to put a price on carbon, making it easy for businesses and individuals to understand the cost of their emissions. This approach provides a clear economic incentive to reduce emissions and transition towards cleaner alternatives.
Ghana’s Emission Levy Act 2023, which took effect in February 2024, exemplifies a carbon tax mechanism. The Act introduced a fixed-price carbon tax requiring major polluters to pay for their greenhouse gas emissions. Industrial sectors such as manufacturing, mining, oil, and gas were charged GH₵100 per ton of carbon dioxide equivalent (tCO₂e) monthly, while vehicle owners faced annual flat fees ranging from GH₵75 to GH₵300 depending on engine capacity—e.g., GH₵150 for vehicles up to 3000cc and GH₵300 for those above 3000cc. The levy targets emissions from fuel combustion in industries and from internal combustion engine vehicles, with payments collected by the Ghana Revenue Authority (GRA) and transferred to the Consolidated Fund. Designed to uphold the “polluter pays” principle, the Act aims to reduce emissions and generate domestic revenue to support green energy and eco-friendly technologies. Despite its clear classification as a carbon tax, public backlash and concerns from businesses about cost implications led to its repeal, meaning that companies will be incentivized not to reduce their carbon emission, and Ghana, as a country, will be unable to meet its international climate commitment.
The second mechanism of carbon pricing is the Emissions Trading System (ETS), or cap-and-trade, which is a carbon pricing method that sets a limit (or “cap”) on total emissions from certain sectors like power and industry. The government issues a fixed number of permits, each allowing one ton of CO₂ emissions. Companies can buy and sell these permits. Those that cut emissions easily can sell their extra permits to those who find it harder to reduce. This creates a carbon market where the price is set by supply and demand, encouraging cost-effective emission reductions over time.
How it Aligns with the Paris Agreement
Carbon pricing plays a key role in helping countries meet their commitments under the Paris Agreement, which seeks to limit global temperature rise to well below 2°C, with efforts to stay below 1.5°C. By placing a cost on emissions, carbon pricing creates strong economic incentives for countries, industries, and individuals to reduce greenhouse gases, encouraging cleaner choices and technologies. The Paris Agreement’s Article 6 promotes international cooperation through carbon markets, and carbon pricing—especially emissions trading systems—can facilitate the transfer of emissions reductions between countries. It also enhances transparency by making emissions reporting more accountable and measurable. Additionally, revenue from carbon pricing can be used to fund climate adaptation and resilience projects in vulnerable communities, directly supporting the Paris Agreement’s broader goals of fairness and sustainability.
Getting Involved
The success of carbon pricing depends heavily on strong collaboration among individuals, businesses, and governments. This collective effort ensures that policies are not only well-designed but also widely supported and effectively implemented. Governments and businesses, in particular, play a crucial role when they move beyond simple cooperation to actively co-develop carbon pricing strategies and broader sustainability initiatives. By combining the regulatory power and policy direction of governments with the innovation, resources, and operational reach of businesses, these partnerships can drive meaningful environmental change and accelerate progress toward a low-carbon future.