Superpollutant Roadmap for Corporate Action

Superpollutant action can help stabilize the climate and avoid tipping points. Superpollutants are on par with carbon dioxide in that both are responsible for a nearly equal share of the warming reduction required to hold the planet below 2°C. Figure E1 presents projected global temperature outcomes through 2100 under the IPCC’s 2°C scenario. It compares the contribution of CO₂ mitigation alone versus combined CO₂ and superpollutant mitigation. Of the 0.9°C of warming separating the 2°C scenario from the business-as-usual case (reference case), approximately half is attributable to CO₂ reductions, with the remaining half attributable to superpollutant reductions.

Cutting superpollutant emissions delivers rapid, near-term relief because most are short-lived in the atmosphere. A single ton of methane abated today has largely left the climate system within two decades—making it a uniquely fast acting lever.

Superpollutant action is a kickstart, not a substitute. Superpollutant action is an important complement to CO₂ action that is essential for limiting the extent of warming. Burning fossil fuel emits reflective sulfate particles that act to cool the planet. The reduction in reflective particles resulting from lower fossil fuel use, an effect known as “unmasking,” is the reason the “CO₂ only” curve in Figure E1 stays above the dark blue line until 2060. Pairing superpollutant mitigation with decarbonization dampens this effect because most measures reduce warming without removing aerosol cooling.

This pairing creates an important sequencing opportunity. Rapid superpollutant abatement, achievable in low-cost, quick-turnaround interventions like leak repair and refrigerant management, will extend the scaling time needed for slower, capital-intensive CO₂ reductions in heavy industry and infrastructure.

Companies can pursue numerous opportunities and many proven pathways to make a difference. As part of this research, the Carbon Containment Lab cataloged 204 mitigation measures—and the list is growing. Many actions mitigate more than one superpollutant and some also abate CO₂. 60 percent of these measures are mature and ready to scale up, some at a cost of less than $1 per ton or even provide net savings. Others requiring more investment are a natural fit for voluntary carbon markets meeting financial additionality requirements. Not every mitigation measure is equally ready; some require work on standards, methodologies or measurement. The most immediate and scalable opportunities lie where the sources are concentrated, the technology is proven, the cost is low, and additional finance can help scale up operations in the next five years.

Explore all 204 mitigation measures →

Companies are finding ways to finance a range of mitigation measures—mechanisms include the use of market-based instruments such as insetting, environmental attribute certificates, or carbon credits. Companies are also claiming the emission reductions against their target or as part of a broader contribution or compensation claim.

In addition, superpollutant co-benefits are already found in decarbonization strategies familiar to companies. Sustainable aviation fuel, greener cement and concrete, and transitioning fleets to battery electric vehicles all have notable superpollutant co-benefits, such as reducing black carbon, nitrous oxide, and tropospheric ozone precursors like volatile organic compounds (VOCs).

Table E1 highlights a few select mitigation measures that are uniquely suited for near-term corporate action with high scalability potential.

Three levers, one strategy. This roadmap organizes corporate action into three reinforcing levers that reinforce the broader climate commitments companies have already made:

Early movers show action is a matter of choice, not capability. They help write the standards and lock in the lowest-cost abatement; those who wait inherit rules written by others and pay more to meet them. In every sector we reviewed, a small group of companies has taken serious action. Danone has committed to cut methane from its fresh-milk supply chain by 30 percent by 2030.⁴ ALDI is converting its U.S. store network to natural refrigerants.⁵ Apple has secured commitments from semiconductor suppliers to abate at least 90 percent of F-gas emissions by 2030.⁶ Workday has signed a four-year offtake agreement to plug orphaned oil and gas wells.⁷ In March 2026, seven companies with the Beyond Alliance—Amazon, Autodesk, Figma, Google, JPMorgan Chase, Salesforce, and Workday—launched the Superpollutant Action Initiative, committing $100 million through 2030 to projects that would not otherwise be financed.⁸ More announcements are made every day, and the category is growing quickly.

The window is now. Actions to mitigate superpollutants are a powerful confluence of urgent, immediately available, cost-effective, and fast-acting. The technologies, methods, and markets exist today; what they need is capital and corporate demand at scale. Superpollutant Roadmap for Corporate Action highlights existing abatement opportunities, their cost, and how companies can pursue them through each of the three levers.

The Carbon Containment Lab invites companies to act decisively and treat superpollutants not as a footnote to their climate strategy but as its fastest-moving front.