https://doi.org/10.1021/acs.est.5c11467

Aux origines des biochars Il y a plusieurs siècles déjà , l’Homme utilisait du bois et des déchets agricoles brûlés pour amender les sols. Ce procédé ancestral a depuis évolué vers des méthodes industrielles plus contrôlées pour répondre aux enjeux modernes de valorisation de la biomasse et de séquestration du carbone à travers la fabrication de […]
One CDR method delivers over 90% of all commercially traded permanent carbon removal credits.
It's not DAC. It's not enhanced weathering.
It's biochar. An $838M market in 2026, heading to $2.3B by 2034. Credits stabilized at ~$150/tCOâ‚‚e.
The quiet giant of carbon removal.
The biochar will help aerate the soil, add microbiology help with water retention and make a long term store of inert carbon.
The biochar burn stores more carbon than is burnt off, making it a net carbon store despite the fire.
We get woodchip as a waste product from the local tree surgeon.
I also managed to get some willow offcuts from a local basket weaver’s class & will try those next. They will also try making biochar with the rest of their offcuts.
Incase anyone is interested in the Biochar burn I did the other day here’s how it worked for me (I was not sure what to expect- so feel like it might help others)
I used a biochar kiln, with an inner & outer sleeve. The inner sleeve has holes at the bottom and very top only.
The fuel was riddled woodchip (to stop too small particles blocking airflow)
1 You can see the gasses coming through the top airholes & burning off.
2 flames go pale/invisible
3 quenched char