An Estimate of the Amount of Geological CO₂ Storage over the Period of 1996-2020.

ABSTRACT: The climate impact of carbon capture and storage depends on how much CO₂ is stored underground, yet databases of industrial-scale projects report capture capacity as a measure of project size. We review publicly available sources to estimate the amount of CO₂ that has been stored by facilities since 1996. We organize these sources into three categories corresponding to the associated degree of assurance: (1) legal assurance, (2) quality assurance through auditing, and (3) no assurance. Data were found for 20 facilities, with an aggregate capture capacity of 36 Mt of CO₂ year^-1. Combining data from all categories, we estimate that 29 Mt of CO₂ was geologically stored in 2019 and there was cumulative storage of 197 Mt over the period of

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC9366999 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature