> For the complete documentation index, see [llms.txt](https://aetlas.gitbook.io/aetlas/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aetlas.gitbook.io/aetlas/for-project-developers/references-and-other-guidance/additional-principles-for-biomass-based-projects.md). # Additional Principles for Biomass-Based Projects Biomass-based pathways for CDR involve a range of processes that convert CO2 sequestered through photosynthesis into durable forms of carbon storage. Prominent pathways include biochar, wood harvesting and storage, and geologic sequestration of biogenic CO2 (e.g., BECCS). These biomass carbon removal and storage ([BiCRS](https://www.icef-forum.org/pdf/2020/roadmap/roadmap.pdf)) technologies can result in sizable and highly durable CDR. Some pathways may also generate a co-product such as electricity or hydrogen. The feedstock for biomass-based CDR can be grown directly for CDR projects or can be a byproduct of other uses (such as forest or agricultural residues). The following principles for biomass-based CDR build upon those described previously under[ Essential principles for high-quality carbon dioxide removal](/aetlas/for-project-developers/references-and-other-guidance/essential-principles-for-high-quality-carbon-dioxide-removal.md). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://aetlas.gitbook.io/aetlas/for-project-developers/references-and-other-guidance/additional-principles-for-biomass-based-projects.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.