Final answer:
A carbon tariff is a tax on imports from countries without strong climate policies, aimed at encouraging production in environmentally responsible nations and incentivizing sustainable practices.
Step-by-step explanation:
A carbon tariff is best described as a tax on imports from countries that do not have strong climate protection laws. The purpose of a carbon tariff is to encourage companies to produce in countries with strong climate policies by making products from countries with weaker environmental regulations less competitive in the imposing country's market. This aligns with the broader concept of tariffs, which are taxes that governments place on imported goods to raise revenue and protect domestic industries, ultimately shaping economic behavior toward certain policy goals, such as environmental protection.
Furthermore, the utility of such tariffs lies in their ability to encourage firms with lower costs of abatement to switch to cleaner energy sources, therefore reducing their carbon footprint, while firms with higher abatement costs might choose to continue polluting but will have to bear the financial burden of the tariff. By doing so, carbon tariffs are intended to create financial consequences for carbon-intensive products, incentivizing both producers and consumers towards more sustainable alternatives.