Articles | Volume 23, issue 21
https://doi.org/10.5194/acp-23-13701-2023
https://doi.org/10.5194/acp-23-13701-2023
Research article
 | 
03 Nov 2023
Research article |  | 03 Nov 2023

Atmospheric impacts of chlorinated very short-lived substances over the recent past – Part 2: Impacts on ozone

Ewa M. Bednarz, Ryan Hossaini, and Martyn P. Chipperfield

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Short summary
We quantify, for the first time, the time-varying impact of uncontrolled emissions of chlorinated very short-lived substances (Cl-VSLSs) on stratospheric ozone using a state-of-the-art chemistry-climate model. We demonstrate that Cl-VSLSs already have a non-negligible impact on stratospheric ozone, including a local reduction of up to ~7 DU in Arctic ozone in the cold winter of 2019/20, and any so future growth in emissions will continue to offset some of the benefits of the Montreal Protocol.
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