Articles | Volume 19, issue 6
Research article
20 Jun 2023
Research article |  | 20 Jun 2023

Effects of ozone levels on climate through Earth history

Russell Deitrick and Colin Goldblatt


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1158', Jim Kasting, 15 Nov 2022
    • AC2: 'Reply on RC1', Russell Deitrick, 06 Apr 2023
  • RC2: 'Comment on egusphere-2022-1158', Anonymous Referee #2, 10 Mar 2023
    • AC3: 'Reply on RC2', Russell Deitrick, 06 Apr 2023
  • AC1: 'Comment on egusphere-2022-1158', Russell Deitrick, 06 Apr 2023
  • EC1: 'Comment on egusphere-2022-1158', Yves Godderis, 28 Apr 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish as is (16 May 2023) by Yves Godderis
AR by Russell Deitrick on behalf of the Authors (18 May 2023)  Author's response   Manuscript 

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Russell Deitrick on behalf of the Authors (15 Jun 2023)   Author's adjustment   Manuscript
EA: Adjustments approved (16 Jun 2023) by Yves Godderis
Short summary
Prior to 2.5 billion years ago, ozone was present in our atmosphere only in trace amounts. To understand how climate has changed in response to ozone build-up, we have run 3-D climate simulations with different amounts of ozone. We find that Earth's surface is about 3 to 4 °C degrees cooler with low ozone. This is caused by cooling of the upper atmosphere, where ozone is a warming agent. Its removal causes the upper atmosphere to become drier, weakening the greenhouse warming by water vapor.