Reaching 1.5 and 2.0&thinsp;°C global surface temperature targets using stratospheric aerosol geoengineering

Tilmes, Simone; MacMartin, Douglas G.; Lenaerts, Jan T. M.; van Kampenhout, Leo; Muntjewerf, Laura; Xia, Lili; Harrison, Cheryl S.; Krumhardt, Kristen M.; Mills, Michael J.; Kravitz, Ben; Robock, Alan

doi:https://doi.org/10.5194/esd-11-579-2020

Articles | Volume 11, issue 3

https://doi.org/10.5194/esd-11-579-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-11-579-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 3

Research article

|

14 Jul 2020

Research article |

| 14 Jul 2020

Reaching 1.5 and 2.0 °C global surface temperature targets using stratospheric aerosol geoengineering

Simone Tilmes, Douglas G. MacMartin, Jan T. M. Lenaerts, Leo van Kampenhout, Laura Muntjewerf, Lili Xia, Cheryl S. Harrison, Kristen M. Krumhardt, Michael J. Mills, Ben Kravitz, and Alan Robock

Data sets

GeoMIP SSP5 run data S. Tilmes https://doi.org/10.26024/t49k-1016

WCRP CMIP6 ESGF https://esgf-node.llnl.gov/search/cmip6/

Model code and software

CESM2 data and software G. Danabasoglu https://doi.org/10.5065/D67H1H0V

Short summary

This paper introduces new geoengineering model experiments as part of a larger model intercomparison effort, using reflective particles to block some of the incoming solar radiation to reach surface temperature targets. Outcomes of these applications are contrasted based on a high greenhouse gas emission pathway and a pathway with strong mitigation and negative emissions after 2040. We compare quantities that matter for societal and ecosystem impacts between the different scenarios.