Summary
Details
- Global
SCD0003 can be used by carbon project developers and MRV (monitoring, reporting, and verification) providers, particularly those running nature-based or land-use projects such as forestry, agriculture, or ecosystem restoration. As an open-source module, it is available to any project seeking to quantify greenhouse gas removals or reductions using direct atmospheric measurements, rather than estimation-based methods.
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Overview
SCD0003 is the first SocialCarbon module designed to quantify greenhouse gas emissions and removals using eddy covariance, a technique that measures gas exchange between the Earth’s surface and the atmosphere.
Developed in collaboration with Hyphen Global, the module represents a shift from traditional carbon accounting approaches that rely on activity data and emission factors. Instead, it enables direct measurement of carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O) fluxes, capturing actual ecosystem exchanges in real time.
This approach positions SCD0003 as part of a new generation of atmospheric-based MRV (aMRV) methodologies, aiming to increase the scientific rigor, transparency, and credibility of carbon crediting in nature-based and land-use projects.
Methodology and Requirements
SCD0003 establishes a framework for continuous, site-based measurement of greenhouse gas fluxes using eddy covariance flux towers and atmospheric monitoring systems.
The methodology requires the deployment of on-site instrumentation capable of capturing high-frequency data on gas concentrations and atmospheric turbulence, which are then used to calculate net ecosystem exchange. This enables continuous, real-time quantification of emissions and removals across entire project areas, rather than relying on periodic sampling or modeled estimates.
A key feature is the emphasis on data-driven verification, including uncertainty quantification and dynamic baselines that reflect actual environmental conditions. The module supports full MRV workflows by linking measured fluxes directly to carbon credit issuance, ensuring that credits are based on observed outcomes rather than assumptions.
Current Status
Released in 2025, SCD0003 represents a shift toward direct, measurement-based carbon accounting in the voluntary carbon market, replacing estimation-based approaches with continuous, real-world data. It is presented as a high-integrity MRV methodology, particularly for nature-based projects where uncertainty has historically been high.
In practice, the methodology is closely tied to Hyphen’s atmospheric MRV (aMRV) system, which co-developed SCD0003 and provides infrastructure to implement it. Hyphen’s platform enables real-time data collection, processing, and reporting from flux towers, effectively operationalising the methodology across projects.
As a result, SCD0003 functions both as a standardised methodology and, through Hyphen’s system, as a deployable measurement approach, linking direct atmospheric data to carbon credit generation.
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