We were recently offered a project to test a Nature-Based Solutions (NBS) carbon methodology within a defined geographical area and according to strict guidelines.
However, as anyone with significant field experience knows, open ecosystems rarely conform neatly to rigid protocols.
Natural systems are unpredictable, and real-world outcomes can differ significantly from what is written on paper. We initially followed the guidelines closely, documenting every observation with care.
We were then informed that our work would eventually require verification by a Validation and Verification Body (VVB). This immediately sparked my curiosity — and some scepticism — about who would assess our work and whether they could truly understand the complexities of the ecosystem.
In a moment of light-hearted self-reflection, we jokingly called ourselves “so-called ecologists” and carbon experts. I initially believed that only a fellow naturalist or seasoned carbon scientist could verify our work.
This prompted me to explore who Validation and Verification Bodies (VVBs) are and why their role is central to successful Nature-Based Solutions (NBS) projects.
VVBs serve as independent third-party auditors in the global carbon market.
They are neither project developers nor standards-setting bodies such as Verra or the Gold Standard.
Instead, they occupy a critical middle ground, assessing whether developers’ claims align with both the physical reality on the ground and the chosen methodology’s technical requirements.
The expertise required of a Validation and Verification Body (VVB) in the Nature-Based Solutions sector is remarkably broad. An NBS VVB must combine rigorous auditing with a deep understanding of biological systems, including silviculture, soil science, and hydrology.
They must also be proficient in modern technologies such as remote sensing and Geographic Information Systems (GIS), interpreting satellite imagery alongside field-based biomass inventories.
Their expertise must extend to understanding species growth rates and the impacts of pests, fire, and climate change. In addition, they require legal and social knowledge to assess land tenure rights and community co-benefits.
Ultimately, a VVB is a multidisciplinary team of scientists, lawyers, auditors, and data analysts capable of connecting the language of ecosystems with the demands of the boardroom.
The criteria for becoming a VVB are intentionally rigorous to prevent the proliferation of low-quality or “junk” carbon credits that have historically plagued the market.
An organization cannot simply declare itself a VVB; it must undergo a gruelling accreditation process through recognized international bodies such as the American National Standards Institute (ANSI) or the United Kingdom Accreditation Service (UKAS).
This is often done under the ISO 14065 standards, which specifically outline the requirements for greenhouse gas validation and verification bodies.
Beyond these general international certifications, a VVB must also be specifically approved by the individual carbon registries they intend to serve.
For instance, to verify a project under the Verified Carbon Standard (VCS), a VVB must demonstrate that they have a deep bench of personnel with specific “sectoral scopes,” such as Agriculture, Forestry, and Other Land Use (AFOLU).
This ensures that an auditor who typically checks the carbon footprint of a manufacturing plant isn’t suddenly tasked with the vastly different challenge of measuring carbon sequestration in a complex mangrove restoration project or a tropical peatland.
The verification process itself is a two-stage journey consisting of validation and verification, each serving a distinct purpose in the project lifecycle.
Validation occurs early on and focuses primarily on the project’s design and the theoretical framework.
During this phase, the VVB asks whether the plan is scientifically sound, whether the chosen methodology is being applied correctly to the specific geography, and whether the projected carbon sequestration is realistic.
Verification, on the other hand, happens periodically after the project has been implemented.
This involves a deep dive into the actual monitoring reports to see how much carbon was truly sequestered over a specific period.
This is where the VVB’s expertise in “open ecosystems” becomes vital.
They must scrutinize the data to determine if the “additionality” of the project is real meaning, would this carbon have been sequestered anyway without the project’s intervention?
They also look for “leakage,” which occurs if protecting one area of land simply causes deforestation to move to a neighboring area.
If the VVB identifies these risks, they have the power to reject the issuance of credits, serving as the ultimate safeguard against environmental integrity failures.
This leads us to the fundamental question of why this process is so critically important for the future of NBS projects.
The answer lies in the inherent fragility of trust within the voluntary carbon market.
Because carbon sequestration is largely invisible and occurs over many decades, it is unfortunately easy for bad actors to exaggerate their impacts or for well-meaning developers to make honest but significant errors in their calculations.
Without a rigorous, third-party VVB process, the market would quickly succumb to “greenwashing,” where companies claim to be carbon neutral based on projects that exist only on paper or in glossy brochures.
Verification provides the “Proof of Performance” that justifies the price of a carbon credit. It transforms a complex biological process into a verified, tradable financial asset.
When an investor buys a credit from an NBS project, they are not just buying a tree; they are buying the professional assurance that an independent expert has stood in that field, measured that tree, and confirmed that it is indeed removing carbon from the atmosphere in the exact amount claimed.
Furthermore, the verification process is vital because of the “reversals” risk that is inherent in nature.
Unlike a mechanical carbon capture machine, a forest is subject to the whims of the environment; it can burn down in a wildfire, be decimated by invasive insects, or be cleared due to sudden political instability.
The VVB process includes a detailed assessment of a “buffer pool,” where a percentage of generated credits are set aside and never sold, acting as a collective insurance policy against these natural disasters.
A VVB’s job is to accurately calculate the risk profile of the ecosystem to determine how large that buffer needs to be to protect the integrity of the market.
This level of scrutiny protects the atmosphere by ensuring that if a project fails five or ten years from now, the climate benefit claimed today remains physically real and accounted for.
In the context of our “open ecosystem,” which we found so unpredictable at the start of our journey, the VVB is the entity that quantifies that unpredictability and converts it into a manageable, scientific metric.
The views expressed here are those of the writer and do not necessarily represent the views of Sarawak Tribune. The writer can be reached khanwaseem@upm.edu.my
