Articles | Volume 15, issue 6
The Cryosphere, 15, 3013–3019, 2021
https://doi.org/10.5194/tc-15-3013-2021
The Cryosphere, 15, 3013–3019, 2021
https://doi.org/10.5194/tc-15-3013-2021

Brief communication 30 Jun 2021

Brief communication | 30 Jun 2021

Brief communication: Reduction in the future Greenland ice sheet surface melt with the help of solar geoengineering

Xavier Fettweis et al.

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Short summary
Without any reduction in our greenhouse gas emissions, the Greenland ice sheet surface mass loss can be brought in line with a medium-mitigation emissions scenario by reducing the solar downward flux at the top of the atmosphere by 1.5 %. In addition to reducing global warming, these solar geoengineering measures also dampen the well-known positive melt–albedo feedback over the ice sheet by 6 %. However, only stronger reductions in solar radiation could maintain a stable ice sheet in 2100.