Field Notes
Science, methodology, and market insights from the Terrabit team.
All articles
What Is MRV and Why Does It Matter for Soil Carbon?
Measurement, Reporting, and Verification (MRV) is the backbone of any credible carbon market. Here's what it means in the context of soil organic carbon and why precision matters.
How Satellite Spectroscopy Reads the Soil Beneath Your Feet
Shortwave infrared reflectance from Sentinel-2 and Landsat 9 reveals more about soil organic carbon than most people realize. We explain the physics and the limits.
The Regenerative Agriculture Carbon Market in 2025: What Growers Need to Know
Voluntary carbon markets had a turbulent 2023–2024. Here's where soil carbon credits stand heading into 2025, and what it means for Midwest farm operators.
Soil Core Sampling: Best Practices for MRV-Ready Results
The quality of your carbon credit depends heavily on the quality of your soil samples. We cover sampling density, depth intervals, chain of custody, and lab analysis protocols.
A Corporate Buyer's Guide to Nature-Based Carbon Offsets
Not all carbon credits are equal. For sustainability officers evaluating nature-based solutions, here's what to look for in MRV methodology, permanence, and additionality.
Verra VCS vs. Gold Standard: Choosing a Protocol for Soil Carbon
Two of the leading voluntary carbon standards have different requirements for soil carbon projects. We compare their methodologies, co-benefit requirements, and buyer acceptance.
Building a Defensible Baseline: The First Step in Soil Carbon Verification
A baseline measurement is the reference point against which all future carbon sequestration is measured. Getting it right determines the integrity of every credit you'll ever issue.
How Terrabit Measures Additionality in Regenerative Farm Projects
Additionality — proving that carbon sequestration wouldn't have happened without the project — is the hardest concept to operationalize in soil carbon MRV. Here's our approach.
Two Years of Data: What Iowa's Regenerative Farms Are Actually Sequestering
Aggregate data from our first cohort of verified Iowa farms shows consistent SOC gains ranging from 0.2 to 0.9 percentage points over two years. We break down the variables.
Comparing Soil Carbon MRV Technologies in 2025
Remote sensing, direct sampling, and model-based estimation each have tradeoffs. We compare the major MRV technology approaches on cost, accuracy, scalability, and protocol acceptance.
Permanence Risk in Soil Carbon: What Happens If a Farm Changes Practices?
Soil carbon can be reversed. Tilling a no-till field, drought, or management changes can release stored carbon. Here's how permanence risk is priced, buffered, and disclosed.
From Core Sample to Credit Package: Terrabit's End-to-End Process
A detailed walkthrough of how a soil core sample becomes a verified, registry-ready carbon credit package — every step, every data handoff, every validation gate.