Powis et al. (2023): Quantifying global carbon dioxide removal deployment

Carter M Powis, Stephen M Smith, Jan C Minx, Thomas Gasser IN: Environmental Research Letters, DOI 10.1088/1748-9326/acb450

It is not known how much CDR is currently deployed at a global scale, nor how that compares to mitigation scenario estimates. Here, the authors address this problem by developing an estimate of global current CDR activity. They draw on national greenhouse gas inventory data combined with CDR registries and commercial databases to estimate that global anthropogenic activity presently generates ~1985 MtCO₂yr^-1 of atmospheric removals. To conclude the authors discuss uncertainties related to their estimates, and suggest priorities for the future collection and management of CDR data, particularly related to the role of the land sink in generating CDR.

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