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| Titel |
Integrated mitigation and solar radiation management scenarios under combined climate guardrails |
| VerfasserIn |
Marius Stankoweit, Hauke Schmidt, Elnaz Roshan, Patrick Pieper, Hermann Held |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250107449
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| Publikation (Nr.) |
 EGU/EGU2015-7152.pdf |
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| Zusammenfassung |
| In addition to the climate policy options ‘mitigation’ and ‘adaptation’ solar radiation
management (SRM) has been put on the agenda. As SRM costs are comparably low
compared to mitigation costs, including SRM risks in the analysis proves essential. In our
contribution we focus on precipitation pattern changes as potential side-effects of SRM and
perform an integrated mitigation-SRM-based analysis on the basis of economic welfare
optimization, constrained by climate guardrails.
We define a tolerable scale of precipitation changes by the anomalies that would have
been tolerated under a temperature target. Given that metric and a temperature target, by
utilizing the integrated assessment model MIND, we derive the cost reduction, induced by
including the additional option of SRM. We show that the cost reduction is a strong function
of the fraction of Giorgi regions, for which we require compliance with the newly defined
SRM guardrail. Compliance with all Giorgi regions might eliminate most of the economic
gain achievable through SRM. The effects of alternative parameterizations of the
SRM-precipitation pattern change influence chain are discussed. |
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