BIOCHAR CARBON OFFSET METHODOLOGY

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BIOCHAR IN CARBON TRADING MARKETS

The Biochar Carbon Stability Test Method

To develop the Biochar Carbon Stability Test Method, IBI convened a group of world-class experts (the Expert Panel) in different fields relevant to biochar persistence and representing the research and commercial sectors. The goal was to identify a simple yet reliable and verifiable measure for biochar stability. Important requisites were defined for the test, including cost, repeatability, and availability. The Biochar Carbon Stability Test Method agreed upon by the Expert Panel uses the ratio of hydrogen to organic carbon (H/Corg)—as measured using standard analytical techniques—to estimate the fraction of biochar carbon that will persist in soil for 100 years.