# Clarifying the conflation of biochar carbon stability and its soil co-benefits

## TL;DR

This paper explains that biochar's ability to store carbon long-term is often mixed up with its soil benefits, which can lead to confusion in research and markets.

## Contribution

The paper introduces a framework to separate biochar's carbon stability from its soil co-benefits for better design and communication.

## Key findings

- Biochar carbon stability and soil co-benefits are often conflated in research and markets.
- Stable biochar is better for long-term carbon storage, while less stable biochar provides more soil benefits.
- Clear communication about biochar properties is essential for credible carbon markets and policies.

## Abstract

Not all biochar is equal. We clarify the frequent conflation between biochar carbon stability and soil co-benefits across research, policy, and markets. While stability ensures long-term carbon storage, co-benefits rely on more surface functionality from less stable biochar. Decoupling these dimensions enables designing biochar optimized for distinct functions.

Biochar stability and soil benefits drive trade-offs in feedstock and pyrolysis conditions.Current reporting often conflates carbon durability with co-benefits, risking market misrepresentation.Clearer communication on biochar properties is vital to ensure credible carbon markets and policy decisions.

Biochar stability and soil benefits drive trade-offs in feedstock and pyrolysis conditions.

Current reporting often conflates carbon durability with co-benefits, risking market misrepresentation.

Clearer communication on biochar properties is vital to ensure credible carbon markets and policy decisions.