This article investigates the genesis and role of the 2° target in international climate policy. We identify a dual role played by temperature targets: (i) a social planner's option of decision making under uncertainty that draws on the precautionary principle, and (ii) a policy instrument to...

Klimapolitische Entscheidungen sind herausfordernd. Eine besondere Schwierigkeit liegt in der Folgeabschätzung: Meist sind zwar die möglichen Handlungsfolgen, nicht aber deren Wahrscheinlichkeiten bekannt (Entscheidungen unter Unsicherheit). Mitunter ist sogar unklar, welche Handlungsfolgen...

Klimapolitische Entscheidungen sind herausfordernd. Eine besondere Schwierigkeit liegt in der Folgeabschätzung: Meist sind zwar die möglichen Handlungsfolgen, nicht aber deren Wahrscheinlichkeiten bekannt (Entscheidungen unter Unsicherheit). Mitunter ist sogar unklar, welche Handlungsfolgen...

Side effects of "solar-radiation management" (SRM) might be perceived as an important metric when society decides on implementing SRM as a climate policy option to alleviate anthropogenic global warming. We generalize cost-risk analysis that originally trades off expected welfare loss from...

Cost-Risk Analysis (CRA) is a method to mathematically deduce preferences in line with a climate target. CRA is a trade-off, where costs of mitigating greenhouse gas emissions are weighted against the risk of exceeding climate targets. CRA enables a community supporting climate targets to...

Strong sustanbility demands that decisions on climate mitigation be guided by a climate target and that compliance with the target be the primary concern prior to saving mitigation cost. Climate targets have often been formulated as temperature targets and for the case of uncertainty about...

Cost risk analysis (CRA) is currently emerging as a noticed decision-analytic framework within the field of climate economics. It combines the expected utility-based structure of cost benefit analysis (CBA) with the target-based approach of cost effectiveness analysis (CEA). As such, it offers a...

Side-effects of "solar-radiation management" (SRM) might be perceived as an important metric when society decides on implementing SRM as a climate policy option to alleviate anthropogenic global warming. We generalize cost-risk analysis that originally trades-off expected welfare-loss from...

This article investigates the trade-off between increasing welfare losses and increasing peak-warming if a temperature target is reformulated as a subsidiary concentration or cumulative emissions target. We apply a welfare maximizing integrated assessment model for a deterministic...