This article was originally published on June 8, 2026 by Roxby Hartley, Ph.D. on LinkedIn.

By Roxby Hartley, Ph.D., Climate Risk Director, EcoEngineers

Super pollutants are one of the hottest topics in climate policy today. In the short time since they arrived on the scene, EcoEngineers has somehow managed to complete:

• 750+ renewable natural gas (RNG) Quality Assurance Program (QAP) audits
• 330+ Low Carbon Fuel Standard (LCFS) RNG validations and verifications
• 500–1,000 RNG life-cycle assessments and carbon intensity (CI) analyses
• 100+ RNG facility registrations
• 147 facility registrations and re-registrations since 2024 alone
• Hundreds of additional compliance updates, amendments, and regulatory filings

All told, that’s more than 2,000 projects and engagements related to methane emissions, renewable natural gas, and climate super pollutant management.

Not bad for a field that only seems to have appeared recently. How did we do it?

The answer is simple: we are amazing!

Okay we are, but that’s not the real reason. We didn’t compress 1,000+ site visits into one year. We’ve been working on super pollutants long before anyone started calling them that.

Among climate policy professionals, there’s a running joke that “super pollutants” are less a scientific breakthrough than a marketing breakthrough. Many of the emissions now grouped under the super pollutant banner, particularly methane, have been discussed, regulated, measured, and mitigated for years as short-lived climate pollutants (SLCPs). The terminology may be new, but the work certainly isn’t.

For EcoEngineers, methane has been at the center of our RNG, LCFS, and U.S. Environmental Protection Agency (USEPA) compliance work for years. Every RNG audit, every facility registration, every carbon intensity model, and every verification engagement have involved understanding and reducing the impact of one of the most important super pollutants in the climate system.

So, while the industry is getting excited about super pollutants, EcoEngineers’ perspective is slightly different. Don’t worry, we’re excited too.

We’re just excited with the confidence that comes from already having completed thousands of projects in the space.

To learn more, connect with us at clientservices@ecoengineers.us.