Brief communication: Solar radiation management not as effective as CO2 mitigation for Arctic sea ice loss in hitting the 1.5 and 2 °C COP climate targets
An assessment of the risks of a seasonally ice-free Arctic at 1.5 and 2.0 ∘ C global warming above pre-industrial levels is undertaken using model simulations with solar radiation management to achieve the desired temperatures. An ensemble of the CMIP5 model HadGEM2-ES uses solar radiation managemen...
| Published in: | The Cryosphere |
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| Main Authors: | , |
| Format: | Text |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://doi.org/10.5194/tc-12-3355-2018 https://tc.copernicus.org/articles/12/3355/2018/ |
| Summary: | An assessment of the risks of a seasonally ice-free Arctic at 1.5 and 2.0 ∘ C global warming above pre-industrial levels is undertaken using model simulations with solar radiation management to achieve the desired temperatures. An ensemble of the CMIP5 model HadGEM2-ES uses solar radiation management (SRM) to achieve the desired global mean temperatures. It is found that the risk for a seasonally ice-free Arctic is reduced for a target temperature for global warming of 1.5 ∘ C (0.1 %) compared to 2.0 ∘ C (42 %), in general agreement with other methodologies. The SRM produced more ice loss, for a specified global temperature, than for CO 2 mitigation scenarios, as SRM produces a higher polar amplification. |
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