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IPCC Working Group III report: The land sector and climate mitigation - Appendix 1
The document presents a comparative analysis of multiple carbon dioxide removal (CDR) technologies and nature-based solutions, detailing their Technology Readiness Levels (TRL), estimated costs per tonne of CO2, and annual mitigation potentials. It highlights that while some methods like afforestation and BECCS have substantial contributions in Integrated Assessment Models (IAMs), others such as biochar and soil carbon sequestration are still in development or not yet incorporated into these global pathways. The analysis also weighs the co-benefits, such as improved biodiversity and soil health, against risks including land competition with food production and potential carbon reversal.
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Document type: Report