fNRB news 2025 March

The UN’s Methodologies Panel (MP) is steering a critical shift in clean cookstove projects, balancing accuracy and feasibility in carbon crediting.

The latest recommendation introduces a marginality concept alongside the MoFuSS model, aiming to refine fNRB (fraction non-renewable biomass) values—key to determining carbon credit issuance.

Why does this matter?

The fNRB metric dictates how carbon credits are awarded in both voluntary and Paris Agreement markets.

The MoFuSS model provides detailed satellite-based insights, but some argue it underestimates unsustainable firewood use.

A marginal approach could adjust credit calculations—potentially unlocking more realistic valuations for developers.

With the CDM Executive Board set to decide on the next steps later this month, the outcome could reshape carbon financing for clean cooking solutions worldwide.