Soil testing
These initiatives, often driven by Indigenous communities seeking sustainable revenue, promise not only climate benefits but also equity in the green economy.
But this potential can only be realized through supportive regulation and the right technological infrastructure.
Soil is one of the planet’s largest carbon sinks, and practices that increase soil organic carbon, like regenerative agriculture and reforestation, can generate measurable uptakes of carbon.
In carbon markets, this uptake can be translated into credits that can be sold to governments or corporations seeking to offset their emissions.
Indigenous communities, many of whom manage vast tracts of biodiverse and carbon-rich land, are increasingly seen as ideal partners or leaders in these projects.
Carbon credit schemes can provide crucial income in underserved regions while aligning with traditional ecological knowledge and conservation goals.
Australia is currently the global leader in Indigenous-led soil carbon projects.
The Aboriginal Carbon Foundation, for instance, has supported initiatives where Indigenous landowners implement savannah burning and sustainable grazing practices to boost soil carbon.
These projects are verified under Australia’s Emissions Reduction Fund and rely on both satellite data and on-the-ground soil sampling to quantify results.
In Canada, First Nations communities have expressed interest in soil carbon markets, although much of the activity remains in early stages.
Similarly, discussions are emerging in parts of the Amazon basin and sub-Saharan Africa where Indigenous land tenure intersects with climate finance opportunities.
To ensure credibility in voluntary or compliance carbon markets, soil carbon sequestration must be accurately measured, reported, and verified (MRV).
This presents both a challenge and an opportunity for the environmental monitoring sector.
Key instrumentation and methods include:
To serve this growing market, monitoring companies will need to offer interoperable solutions that combine ground-truthing with remote sensing, and that are sensitive to the governance needs of Indigenous landholders.
While the market is promising, regulators must grapple with several challenges.
Soil carbon is notoriously variable, and sequestration gains can be hard to detect in the short term.
Regulators need clear standards for uncertainty thresholds and acceptable error margins.
Similarly, soil carbon gains can be quite easily reversed, so long-term monitoring and consideration of risk factors must be integrated into project design.
Lastly, in the context of monitoring being driven by Indigenous communities, regulators must ensure free, prior, and informed consent (FPIC) for all participants, along with fair revenue sharing.
Past injustices in carbon markets, especially land grabs, have demonstrated the need for rigorous safeguards.
The future of Indigenous-led soil carbon markets depends on technology and partnership.
For monitoring professionals, this is an opportunity to help shape a market that not only mitigates climate change but also redistributes power and resources to frontline communities.
Instrumentation firms, data scientists and soil labs that can provide low-cost, scalable and culturally-appropriate monitoring services stand to benefit immensely.
And in general, as the world shifts from carbon reduction to carbon removal, soil-based solutions, grounded in Indigenous stewardship, are likely to become a cornerstone of global climate policy.
IET 36.3 May