A roadmap for achieving scalable, safe, and low-cost direct air carbon capture and storage

Lukas Küng, Silvan Aeschlimann, Charithea Charalambous, Fergus McIlwaine, John Young, Noah Shannon, Karen Strassel, Cara Nichole Maesano, Rudy Kahsar, Daniel Pike, Mijndert van der Spek, Susana Garcia*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review


Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the air and its subsequent long-term storage. DACCS is at an early stage of technical development and currently faces a variety of challenges, including high cost and energy requirements. Building on publicly available data, this paper provides: (i) an overview and classification of DACCS systems, (ii) a harmonization of technical and economic performance of direct air capture technologies, (iii) a comprehensive list of technical- and infrastructure-based obstacles to scaling DACCS systems, and (iv) a roadmap and list of priority initiatives for research, development, demonstration, and deployment of DACCS. Our intent is to drive progress against high-impact priority actions, with a focus on accelerating research, development, and deployment of safe, scalable, and low cost DACCS as a component of the broader carbon dioxide removal portfolio.
Original languageEnglish
JournalEnergy and Environmental Science
Early online date19 Jul 2023
Publication statusE-pub ahead of print - 19 Jul 2023

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