The 2 degrees scenario requires a cumulative reduction of 142 to 227 Gt of CO 2 by 2060 via CCS . Existing CCS projects in operation globally currently sequester 31.7 MtCO 2 per year . There is a significant discrepancy between what is currently deployed and what is actually required. In order to meet this target, 2800 -4500 CCS plants of 1.7 Mtpa capacity will need to be constructed between 2030 and 2060. ‡ This estimate is in line with other published values . § The design to operation of a CCS project can take between three to six years. As we gain experience, this process could become more efficient. Therefore, the construction of first batch of CCS projects must begin by 2027 in order to begin operation by 2030. Any delays in the supply chain or construction will require a proportionally higher number of plants to be built, putting strain on the system.