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AHDB-led pilot shows current soil carbon measurement methodologies may be underestimating carbon stocks by a third or more

#237 | Source: Source: AHDB | Published on June 17th, 2026

Initial findings from our pioneering environmental baselining pilot suggest that current carbon accounting methodologies could significantly underestimate the amount of carbon stored in soils, with 30% or more of soil organic carbon on the pilot farms sitting below the commonly measured 30cm depth.

The Environment Baselining Pilot, delivered by AHDB with support from Quality Meat Scotland (QMS) and Hybu Cig Cymru – Meat Promotion Wales (HCC), is working with 178 farms across the beef and lamb, cereals and oilseeds, dairy and pork sectors in England, Scotland and Wales.

It represents one of the most detailed assessments of carbon stocks across British farmland in recent decades.