Superpollutant policy differs from carbon dioxide policy in three important aspects.
- First, superpollutant policy is closely tied to multiple near-term benefits, making a stronger case for political action. For example, methane reductions can deliver rapid climate relief while reducing ozone-related crop losses and avoiding premature deaths due to air pollution.160 F-gas and efficient cooling policies can reduce peak electricity demand. LRM improves cooling resilience in rapidly warming regions.161 Reductions in black carbon, such as switching from diesel to electric vehicles, can immediately alleviate public health and air-quality problems associated with particulate matter.162 Nitrogen management policies can respond to water quality, biodiversity, fertilizer efficiency, food security, and nitrous oxide emissions at the same time.163 Companies that connect their superpollutant strategies to these multiple benefits are more likely to find receptive policymakers and community partners.
- Second, superpollutants are a diverse class of pollutants, and that diversity is reflected in how they are governed. Unlike carbon dioxide, which is governed under a single overarching framework (Paris Agreement),164 superpollutants are addressed through a patchwork of international agreements, sector-specific frameworks, and national policies, with some pollutants falling under multiple regimes.165 Each pollutant has distinct physical and chemical characteristics, mitigation pathways, and institutional authorities. The result is an interconnected but fragmented policy landscape with no single treaty governing all superpollutants, limited understanding of the trade-offs that can exist between mitigation measures, and an accounting and metrics system that undervalues their climate impacts and the mitigation opportunity relative to CO2. For companies, this fragmentation means tracking separate policy trajectories across pollutants.
- Third, exposure to superpollutant policy is often distant from the company’s own direct operations, residing in value chains—upstream, downstream, or even outside of them. A technology company procuring data center cooling equipment faces F-gas quota constraints at its equipment supplier, not in its own facilities. A food and beverage company sourcing from livestock or fertilizer-intensive agriculture carries methane and nitrous oxide exposure in its supply chain, not on its balance sheet. Consequently, companies that engage early with suppliers, contractors, and sourcing regions are better positioned for future policy changes than those waiting for direct regulatory pressure.
Superpollutant policy landscape today
Superpollutant policy is moving from voluntary ambition and pledges toward compliance and implementation, but through different pathways. F-gases are governed through a mature treaty-backed architecture; methane policy is accelerating through national and sector-specific rules; and nitrous oxide, tropospheric ozone, and black carbon are still governed largely through fragmented, indirect, or emerging frameworks. At the same time, superpollutants are increasingly being incorporated into national climate policy through Nationally Determined Contributions (NDCs). As of August 2026, 149 countries had submitted NDC 3.0, with many strengthening the inclusion and specificity of methane, black carbon, nitrous oxide, and HFC mitigation measures.166 Across all of these policy areas, the Climate and Clean Air Coalition (CCAC) is an international platform for translating political commitments into national action, supporting governments with scientific and technical assistance, financing, and partnership opportunities that no single treaty currently provides.167
Table 10: The current superpollutant policy landscape: snapshot
| Superpollutant | Corporate exposure | Core policy architecture | Policy maturity | Policy pathway | Near-term implications for companies |
|---|---|---|---|---|---|
| Methane | Energy procurement, oil and gas supply chains, coal mines, agriculture, waste facilities, wastewater | Global Methane Pledge, IMO methane measures, Nationally Determined Contributions (NDCs), national methane plans, OGMP 2.0, agriculture and industrial sector-specific rules | Accelerating, but uneven across sectors and geographies | Moving from voluntary pledges toward binding national and sectoral regulation | Methane is a compliance, market-access, and supplier-performance issue, especially where measurement-based reporting and import standards emerge |
| F-Gases | Residential and commercial HVAC systems, refrigeration, cold chains, data centers, electricity infrastructure, semiconductors, fire suppression | Montreal Protocol and its Kigali Amendment, Global Cooling Pledge, NDCs, national HFC rules (e.g., U.S. AIM Act, EU F-gas Regulation), and national cooling action plans | Relatively mature and enforceable | Treaty-backed phasedown translated into quotas, equipment standards, leak rules, procurement requirements, and domestic regulation | Companies face near-term compliance and procurement decisions as high-GWP refrigerants become scarcer, costlier, and more restricted |
| Nitrous Oxide | Food and agriculture, nylon and chemicals, polyurethane foams, wastewater, and selected healthcare uses | Colombo Declaration on Sustainable Nitrogen Management, Global Nitrous Oxide Assessment, Gothenburg Protocol, NDCs, national nitrogen management initiatives for industrial and agricultural sectors | Emerging with clear industrial mitigation opportunities | Stronger industrial regulations and agricultural nitrogen management | Industrial nitrous oxide can move quickly through supplier standards, while agricultural nitrous oxide requires earlier engagement on nitrogen-use efficiency and MRV |
| Tropospheric Ozone | Transport and logistics, industrial facilities, solvents, petrochemicals, agriculture, methane-intensive supply chains | Gothenburg Protocol, Convention on Long-range Transboundary Air Pollution, WHO Air Quality Guidelines, NDCs, regional and national air quality standards, and NOX/VOC rules | Stronger as air quality policy while slowly emerging as climate policy | Governed indirectly through controls on precursor pollutants, including nitrogen oxides, non-methane volatile organic compounds, carbon monoxide, and methane | Companies already reducing nitrogen oxides, volatile organic compounds, and methane can make tropospheric ozone benefits explicit and support integrated climate and air-quality policy |
| Black Carbon | Freight, shipping, diesel fleets, mining, construction, manufacturing supply chains, agricultural burning, cookstoves | Gothenburg Protocol, Convention on Long-range Transboundary Air Pollution, Arctic Council, IMO standards, NDCs, regional and national PM2.5 and air quality standards, Euro VII (EU), EPA HD nitrogen oxide rules (U.S.), Clean Cooking Initiatives, Malé Declaration, Acid Deposition Monitoring Network in East Asia | Relatively stronger as air quality and health policy, and slowly emerging as climate policy | Governed mostly through air-quality, diesel, shipping, fuel, combustion, and technology standards | Corporate effort needed on clean transport, fuel quality, particulate controls, and supplier standards. Companies already transitioning to electric vehicles can also describe the contribution to black carbon mitigation |
This uneven landscape calls for selective policy engagement by companies that have a strategic interest in ambitious implementation or even new business lines that can serve these new markets. Companies with investments in cleaner operations, equipment, and supply chains are undermined when markets face weaker or unenforced standards or when lobbying by industry associations favors another direction. Where rules already exist, as with F-gas policies, the priority is implementation, enforcement, and resistance to rollback. Where ambition is strong but regulation remains uneven, as with methane, companies can use a combination of voluntary action and active policy engagement by adopting rigorous measurement and abatement practices while advocating for the binding standards, MRV requirements, and finance mechanisms that convert political pledges into enforceable market expectations. Where governance remains fragmented, as with nitrous oxide, tropospheric ozone, and black carbon, companies can advocate for these pollutants to be included in NDCs, national action plans, and stronger sector standards. Consistent, quantified targets support compliance strategy and create a level playing field across markets. Companies can also push for change in their own value chains.
Corporate action in superpollutant policy
The most useful corporate role varies by superpollutant and market, but the same set of engagement strategies could apply across all superpollutants and geographies.
Table 11: Corporate actions in accelerating superpollutant policy
| Corporate policy role | Purpose | Most relevant policy context | Actions companies can take |
|---|---|---|---|
| Support implementation and finance | Turn existing commitments into real emissions reductions | Mature or semi-mature policy environments where ambition exists but implementation capacity has been slow |
|
| Advocate for strong sectoral standards and MRV | Convert corporate best practice into enforceable market expectations | Sectors where rules are developing but coverage remains uneven |
|
| Use procurement to drive policy | Demonstrate that higher standards are commercially feasible and help to build the market for new solutions | Markets where regulation is emerging and/or where suppliers need demand certainty to invest |
|
| Elevate superpollutants into climate planning | Bring underaddressed superpollutants into NDCs’ consultation processes, regional policy arrangements, national action plans, and sectoral strategies | Nitrous oxide, tropospheric ozone, black carbon, and underspecified F-gases or methane plans |
|
| Align lobbying and trade associations | Ensure corporate political activity supports stated climate goals | Policy areas where implementation is contested or standards face delay |
|
Policy is a force multiplier for value chain interventions and carbon market strategies. Well-designed methane policies, F-gas regulations, nitrogen strategies, air-quality rules, and measurement systems create enabling conditions for project pipelines, high-integrity carbon credits, supplier transitions, and finance solutions. Policy also creates consistency and standards that promote trust and verifiability for secondary markets. Value chain interventions then generate evidence about costs, barriers, supplier incentives, and multiple benefits. Carbon market participation fuels demand for high-integrity project types and methodologies and pays for building core MRV and other physical infrastructure. Policy uses the evidence of commercially achievable higher standards and demand to make further action easier, more secure, and cheaper. The roadmap’s three levers are complementary and form a strong feedback loop.
Methane illustrates the feedback loop between policy, value chain and voluntary carbon market (VCM) most clearly: companies that improve methane performance across operations and supply chains generate the implementation evidence that regulators need to set measurement-based standards. Meanwhile, high-integrity credit purchases aligned with national methane plans create demand signals that justify new project investment. The dynamic is consistent across all superpollutants. Companies that approach these three levers as one integrated system are better positioned to contribute to near-term warming reduction and protect the value of the actions they have already taken.
Checklist 3: Superpollutant policy action checklist for companies
Next 12–24 months period:
- Map where each superpollutant emission arises across the company’s operations, procurement categories, and priority suppliers.
- Identify the policies in key markets that already affect those sources or are likely to do so before 2030, including methane rules, F-gas regulations, nitrogen measures, and air-quality standards.
- If the company has compliance obligations in regulated cap-and-trade systems, prefer buying superpollutant mitigation credits to meet obligations.
- Prioritize the superpollutants and jurisdictions that create the greatest combination of regulatory exposure, value-chain risk, and mitigation opportunity (e.g., EU Methane and F-Gas Regulation, China’s HFC controls, U.S. HFC phasedown, NDCs under the Paris Agreement, tightening diesel-emission standards and Arctic shipping regulations).
- Review the company’s current public-policy positions, advocacy, and trade association memberships for alignment with its climate and superpollutant goals.
- Issue internal guidance for government affairs, sustainability, procurement, and legal teams on which superpollutant policies the company will support, monitor, or avoid undermining.
- Choose one or two active policy processes where the company can add value, such as sectoral methane regulations, national cooling action plans, nitrogen management, criteria air pollutant mitigation and/or air-quality regulations.
- Use procurement and supplier management to show that higher standards are feasible—for example, by buying certified lower-emission natural gas, requiring methane measurement, selecting low- or zero-GWP cooling equipment, and buying cleaner, verified commodities.
- Join or deepen participation in credible implementation-focused initiatives, such as CCAC Hubs, OGMP 2.0, or relevant sector platforms.
By 2030:
- Embed superpollutant policy action into the company’s climate and sustainability work, with named executive responsibility and regular board visibility.
- Publicly disclose the company’s approach to supporting the implementation of key superpollutant actions.
- Adopt a formal policy stating that lobbying, trade association activity, and political spending will not be used to delay, weaken, or oppose science-aligned superpollutant policy.
- Integrate superpollutant expectations into procurement standards, supplier scorecards, transition plans, research and development plans, and capital allocation processes.
- Review progress annually and update the company’s policy priorities as regulations, market signals, and sector pathways evolve.
Conclusion
Superpollutants are the most immediate, cost-effective, and scalable opportunity to slow near-term warming and reduce the risk of reaching dangerous climate tipping points. The science is settled enough to act on, the levers proven, and the tools mostly exist today. What is missing is not knowledge or technology. It is corporate action at scale.
Superpollutants account for roughly half of today’s warming. Since they leave the atmosphere within years or decades, cutting them slows warming on a timeline that carbon dioxide mitigation measures cannot touch. This roadmap’s forward-looking modeling demonstrates just how much is at stake: roughly half of the warming prevented on a 2°C-consistent pathway comes from superpollutants. Companies readily name these gases but rarely commit to reducing them. Outside of oil and gas, where regulation has already compelled target-setting, superpollutant targets remain nearly absent. This roadmap sets out to address that mismatch between sources of warming and existing efforts.
The chapters laid out three reinforcing ways to close it: reducing emissions inside the value chain, financing verified mitigation through the voluntary carbon market, and engaging on the policies that make both durable. These are not three separate tactics, but one integrated strategy: value chain action generates the evidence; market participation supplies the finance; and policy engagement turns both into lasting rules applied to all. This strategy is already working in practice: the companies that launched the Superpollutant Action Initiative demonstrate as much. The pathfinders are showing the gap is closable. What remains is to close it at scale and with more urgency.
The gap will not close on its own. The near-term, superpollutant-driven warming is happening now, and the window to bend that curve spans years, not decades. Governments are moving, but unevenly and slowly; voluntary markets are maturing, but remain thinly capitalized and volatile. Corporations hold what this moment requires: the catalytic capital, the procurement leverage over the supply chains where these emissions are concentrated, and the standing to make superpollutant action a normal expectation rather than a rare exception. On the current trajectory, the targets the world has set will not be met. They can be—if the companies with the means decide to act.
The rules are also changing in ways that make the choice less optional than it once was. Under the revised science-based target architecture, superpollutant emissions such as fugitive methane, refrigerant leakage, or industrial F-gases will move from the margins to the center of the target for larger companies.
The case for tackling superpollutants only grows stronger with time. Measurement is improving, sharpening accountability and derisking investment. The set of credible, near-term actions is expanding as science advances and entrepreneurs deploy new solutions. And the stakes are rising as a warming climate pushes natural methane and nitrous oxide sources upward—making early action more valuable and waiting more costly.
The opportunity is a rare one. The companies that move now will help write the standards, secure the lowest-cost abatement, and protect the value of the commitments they have already made. Those that wait will inherit rules written by others and pay more to meet them. This roadmap is an invitation, but it is also a challenge. The half of the climate problem that moves fastest is the half still waiting for corporate leadership. It is time to take it on.
Endnotes
Numbering follows the report, so the web and print editions cite alike.
- See World Bank’s Carbon Pricing Dashboard for a full overview of these programs, https://carbonpricingdashboard.worldbank.org/. ↩
- J. Jason West et al, “Global health benefits of mitigating ozone pollution with methane emission controls,” Proceedings of the National Academy of Sciences 103, no. 11 (March 14, 2006): 3988–3993, https://doi.org/10.1073/pnas.0600201103, ↩
- Benjamin K. Sovacool, Rexon T. Osuoka, and Tochukwu Akpanyung, “Climate change and industrial F-gases: A critical and systematic review of developments, sociotechnical systems and policy options for reducing synthetic greenhouse gas emissions,” Renewable and Sustainable Energy Reviews 141 (May 2021): 110759, https://doi.org/10.1016/j.rser.2021.110759 . ↩
- Susan C. Anenberg, et al., “Global air quality and health co-benefits of mitigating near-term climate change through methane and black carbon emission controls,” Environmental Health Perspectives 120, no. 6 (June 2012): 831–839, https://doi.org/10.1289/ehp.1104301. ↩
- United Nations Environment Programme and Food and Agriculture Organization of the United Nations. 2024. Global Nitrous Oxide Assessment. Nairobi. https://doi.org/10.59117/20.500.11822/46562. ↩
- “The Paris Agreement”, UNFCCC, December 12, 2015, https://unfccc.int/process-and-meetings/the-paris-agreement. ↩
- UNEP Ozone Secretariat, The Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer, (United Nations Environment Programme, 2016), UN Doc. C.N.872.2016.TREATIES-XXVII.2.f, https://ozone.unep.org/treaties/montreal-protocol/amendments/kigali-amendment-2016-amendment-montreal-protocol-agreed. ”About The Global Methane Pledge,” Global Methane Pledge, accessed August 10, 2026, https://www.globalmethanepledge.org/. ↩
- United Nations Framework Convention on Climate Change (UNFCCC), “Paris Agreement Implementation and Compliance Committee: 2026 Milestones,” July 23, 2026, https://unfccc.int/news/paris-agreement-implementation-and-compliance-committee-2026-milestones. Climate and Clean Air Coalition Secretariat, “Integrating Non-CO2 Pollutant Action into Countries’ NDC 3.0s,” January 1, 2026, https://www.ccacoalition.org/news/integrating-non-CO2-pollutant-action-countries-ndc-30s ↩
- “About the Climate and Clean Air Coalition,” Climate and Clean Air Coalition Secretariat, accessed June 29, 2026, https://www.ccacoalition.org/ ↩
