Federal Oversight of Voluntary Carbon Markets Remains Limited, Experts Divided on Future Role

According to the U.S. Government Accountability Office (GAO), the federal government currently plays a minimal role in the voluntary carbon markets, where companies and individuals can purchase carbon credits to offset their greenhouse gas emissions. These credits are generated by projects designed to reduce or remove emissions, such as reforestation or improvements in energy efficiency. However, concerns have been raised by stakeholders regarding the actual environmental benefits provided by these credits, prompting discussions about the need for greater market integrity and transparency.

The voluntary carbon market functions by allowing entities to voluntarily compensate for their emissions through the acquisition of carbon credits. Projects that qualify to generate these credits can encompass a range of activities, including efforts to prevent deforestation, enhance forest management practices, modify energy production and usage, and reduce the release of greenhouse gases. Over the past two years, federal agencies such as the Commodity Futures Trading Commission and the Department of the Treasury have initiated some oversight and guidance measures concerning these markets. Additionally, certain federal bodies have engaged with these markets by supporting the creation and utilization of carbon credits, and by potentially serving as purchasers themselves. These government involvements are subject to potential changes as federal priorities evolve.

Despite the growing interest in these markets, there is no unified agreement among experts on the specific additional actions the federal government could take to bolster their integrity. For instance, among the eight experts interviewed by the GAO, five discussed the possibility of a federal agency taking on the responsibility of regulating and certifying the quality of carbon credits. However, these same experts expressed differing opinions on the extent to which such federal involvement should occur, or if it should happen at all. Further complicating the discussion, a 2023 report from the National Academies and a prior GAO report from 2008 highlighted the trade-offs between implementing federal oversight to ensure market integrity and the potential increases in the cost of carbon credits that such oversight might entail.

Voluntary carbon markets offer a potentially more cost-effective method for purchasers to offset their emissions compared to undertaking direct emission reductions. Nevertheless, these markets are subject to scrutiny from some observers who question whether the carbon credits genuinely deliver the purported environmental benefits, and cite issues with limited transparency. Vulnerabilities of this nature could be negatively impacting the growth and overall integrity of these markets, as indicated in a 2024 report by an international body comprising global securities regulators.

The GAO’s examination of federal involvement in voluntary carbon markets was initiated in response to requests to understand the government’s role. This report details the characteristics of these markets, outlines the roles and activities of federal agencies within them, and identifies potential steps the federal government might consider to enhance market integrity, should it choose to do so. To gather this information, the GAO reviewed previous GAO reports on carbon offsets from 2008, 2009, and 2011, along with reports from the International Organization of Securities Commissions on voluntary carbon markets from 2023 and 2024, and other relevant studies identified through a comprehensive literature review.

Furthermore, the GAO reviewed applicable laws, regulations, and agency guidance documents, and conducted interviews with agency officials to identify the federal roles and efforts related to voluntary carbon markets and to understand how these initiatives are designed to improve market integrity. To explore potential federal actions for promoting integrity in these markets, the GAO examined a 2023 report by the National Academies of Sciences, Engineering, and Medicine titled “Accelerating Decarbonization in the United States: Technology, Policy, and Societal Dimensions,” as well as earlier GAO reports. Expert interviews were also a key component of this examination.

Article by Mel Anara, based upon information from U.S. Government Accountability Office

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