Ahmed et al. (2026): Cation trapping by biochar reduces carbon removal efficiency

Ayesha Ahmed, Tim Jesper Suhrhoff, Chris Reinhard and Noah Planavsky, IN: CDRxiv, https://doi.org/10.5281/zenodo.20719772

Biochar may be a scalable and cost-effective means of atmospheric carbon dioxide removal. However, frameworks for quantifying the effectiveness of this carbon removal pathway are still under development. Here, the authors quantify an initial carbon dioxide removal inefficiency associated with biochar’s inherent ability to lock away cations and nitrogen that would otherwise be released back into the environment.

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