Cotierra

Biochar is one of the cheapest CDR pathways — but only high-quality biochar delivers durable carbon removal. Feedstock, pyrolysis temperature, H/C ratio, and certification all determine whether you’re buying centuries of carbon storage or decades. A new Climeworks/Carbonfuture whitepaper breaks down what high-quality actually means.

Boeing has signed a multi-year soil CDR purchase agreement with Grassroots Carbon. Aviation buying durable soil removals is still rare — and every deal like this shifts the reference point for the whole sector.