The voluntary carbon market, once heralded as a promising mechanism to channel climate finance to vulnerable communities, has suffered a decline amid mounting evidence of systemic failures and questionable environmental benefits.
Market value has plummeted from $2.1 billion in 2021 to approximately $550 million in 2024, according to MSCI/Trove Research data, as scandals about environmentally worthless credits and an FBI fraud investigation involving a leading project developer have shattered investor confidence.
This market collapse comes at a critical moment, as the UN warns that the world is on track for catastrophic heating of 3.1°C by the century’s end without urgent action. Despite a historic pledge at COP28 to transition away from fossil fuels, governments have failed to deliver on voluntary carbon market commitments made in Dubai.
“While current government plans to fight climate change head us for a 3°C warmer world and the prospect of crossing planetary tipping points, COP29 is not tipped to be a game changer,” says Sabine Frank, CMW Executive Director, in a report published by Carbon Market Watch.
In response to the crisis, the United Kingdom, Kenya, and Singapore announced on June 24, 2025, the formation of an international coalition aimed at revitalizing carbon credit trading through shared guiding principles. The initiative comes as preparations accelerate for COP30 in Brazil.
A breakthrough emerged at COP29 in Baku, where governments agreed to rules for an international carbon trading system under Article 6 of the Paris Agreement. The framework could enable major emitters like Germany and Japan to purchase carbon reductions from developing countries as early as 2025.
Axel Michaelowa, carbon markets expert at the University of Zurich, in a story reported by The Guardian, said that “international carbon markets have crashed twice in two decades due to an erosion of credibility.”
However, fundamental concerns persist. A study published in Nature Communications during COP29 found that less than 16% of carbon credits issued represent real emissions reductions. According to the report, “the available evidence suggests that “many carbon credits are not backed by any actual emission reductions.”
The market’s dominant standard-setter, Verra, which controls 70% of credits, is introducing new methodologies following a Guardian investigation that found most of their rainforest offsets were worthless.
Norway has already committed up to $740 million for purchases under the new Paris carbon market, signing agreements with Benin, Jordan, Senegal and Zambia. However, experts warn that rich countries’ overreliance on carbon markets risks unfairly shifting the burden of emission cuts to developing nations.
The London School of Economics’ Grantham Research Institute’s June 2025 report documents a surge in carbon offset litigation, with Australia, Kenya, and the United States among the most affected countries. These legal challenges coincide with growing evidence of human rights violations in carbon projects, including forced evictions of indigenous communities documented by Human Rights Watch.
Despite the market’s troubles, some positive signals emerge. Credit retirements reached a record high of 95 million in the first half of 2025, with retirement value jumping 32%, according to market analysis. This paradox reflects a growing bifurcation: while overall transaction volumes have declined, demand for high-quality credits remains robust.
Carbon removal credits now command prices 381% higher than traditional avoidance credits, reflecting growing skepticism about projects that claim to prevent hypothetical emissions rather than actively removing carbon from the atmosphere.
The market is also grappling with technological disruption. While a new generation of companies promises to revolutionize project verification through satellite monitoring and artificial intelligence, standards bodies have yet to fully embrace these innovations.
The path forward requires addressing fundamental conflicts of interest, including the “developer pays” model where project developers directly hire their auditors. Recent scandals, including a Brazilian police operation that uncovered an alleged timber laundering scheme operating under certified carbon projects, highlight the inadequacies of current verification systems.
As corporate net-zero commitments proliferate and pressure for climate action intensifies, the carbon market stands at a crossroads. Its survival depends on whether new international frameworks can restore credibility to a system that has repeatedly failed to deliver on its promises of combining climate action with sustainable development.
The stakes could not be higher. With humanity spewing out more planet-heating gases than ever before and most governments dragging their feet on emissions reductions, the world urgently needs effective tools to channel climate finance to vulnerable communities while ensuring real environmental benefits.
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