Direct air carbon capture and (permanent) storage (DACCS), is a valuable component of this portfolio. DACCS' distinctive positive attributes include large potential scalability (in terms of physical requirements), relative ease of monitoring, reporting and verification (MRV), and high durability of carbon storage. In direct air capture (DAC), CO 2 is chemically or physically separated from other gas components in air in facilities that can be switched on and off, making DAC technologies highly controllable. Moreover, geological storage and in-situ mineralization, the two most prominently discussed options to store CO 2 captured at scale from DAC facilities, are both durable storage solutions for which MRV is straightforward and reliable, compared to other forms of CDR that take place in open environments.