The work starts long before we ever break ground. It begins with baseline sampling, a crucial first step in our Karibu Enhanced Rock Weathering (ERW) project. Our science team is on the ground, systematically collecting samples to establish the baseline state of the soil. This forms the foundation of our project, enabling us to precisely track impact and demonstrate the effectiveness of our carbon removal efforts.
But baselining goes beyond measuring carbon, it provides the foundation to monitor gains in soil fertility, crop productivity, and resilience against acidification, creating the evidence base for both climate impact and agricultural co-benefits.
Why This Matters
The integrity of carbon removal depends on transparency and verifiable results. Baselining ensures that every claim is backed by rigorous, science-backed data, making carbon removal trustworthy, durable, and impactful.
With the Karibu Project, Stack Carbon is advancing a science-driven model of ERW, where integrity, traceability, and measurable impact are built into every stage of the process. We believe trust in carbon removal starts with rigorous measurement, and that’s the benchmark we hold ourselves to.





