ComparCE: Vergleichende Bewertung möglicher Wirkungen, Nebenwirkungen und Unsicherheiten von CE-Verfahren und Maßnahmen zur Emissionsreduktion
Acronym
ComparCE
Titel
ComparCE: Vergleichende Bewertung möglicher Wirkungen, Nebenwirkungen und Unsicherheiten von CE-Verfahren und Maßnahmen zur Emissionsreduktion
Kurzbeschreibung
The main aim of the project is an objective and comprehensive assessment of the potential impacts, side-effects and uncertainties of various Climate Engineering (CE) measures and emission-reduction efforts. To achieve a fair comparison of different CE measures, these will be simulated in a single state-of-the-art Earth system model, with CE intensities adjusted such as to reach similar indicator levels of CE impacts. In order to allow for a large number of CE scenario and sensitivity simulations in the context of a full Earth system model, we propose to use a computationally efficient intermediate-complexity Earth system model as surrogate of the complex state-of-the-art model. A joint analysis of surrogate and full model simulations will be employed to achieve the following scientific goals:1. Assess and compare efficiency and side-effects of various CE measures for a number of indicators of societal relevance on decadal, centennial, and millennial time scales,2. Investigate the uncertainties associated with models, specifically with poorly constrained model parameters such as climate sensitivity and the sensitivity of terrestrial and marine primary production to changing temperatures and CO2 concentrations.3. Develop, in close collaboration with other SPP projects (Kaiser & Otto), a set of welfare indicators that include a weighted average of the indicators and time scales of objective 1 and the uncertainties determined in objective 2. Investigate to what extent a sustainable climate management is possible and derive optimal combinations of mitigation and CE measures based on the developed indicators.4. Explore ethical aspects of a notion of public utility or welfare that is applicable to the evaluation of CE-measures and study ways to structure participatory processes such that they are likely to take ethical considerations into account.Results of this project will provide a comprehensive assessment of joint mitigation-CE scenarios under uncertainty of models and metrics, which both will be discussed iteratively with partner projects in the SPP. Results of the various CE scenario simulations will be made available to the other projects participating in the SPP.
Start
Mai 2013
Ende
April 2016
Bewilligungssumme (gesamt)
-
Bewilligungssumme (GEOMAR)
325000
Zuwendungsgeber / Programm
-
DFG
/ Priority Programme (SPP)
Koordination
null
Kontakt
