20 years of Integrated Assessment Modelling for the Convention Leen Hordijk, Markus Amann International Institute for Applied Systems Analysis
Integrated assessment modelling as a science-policy interface
WG Strategies WG WG Effects EMEP TFEIP Strategies EGTEI ↓ ↓ ↓ * * ↑ ↑ TF Integrated Assessment Modelling =
A unique dialogue between negotiators and modellers
/dev/tty> International Institute for Applied Systems Analysis (IIASA) RAINS 1.1 (1984) ========================================================= RRRR AA III NN N SSSS R R A A I N N N S RRRR AAAAAA I N N N SSSS R R A A I N N N S R R AA AA III N NN SSSS ========================================================= Please treat all results with caution! Hit RETURN to continue …
1.From the negotiators to the modellers: Do cost-effectiveness instead of cost-benefit analysis! Two key messages emerging from the dialog between negotiators and scientists
1992: Cost-effectiveness analysis for Second Sulfur Protocol
Two key messages emerging from the dialog between negotiators and scientists 1.From the negotiators to the modellers: Do cost-effectiveness instead of cost-benefit analysis! 2.From the modellers to the negotiators: A multi-pollutant/multi-effect approach can increase economic efficiency and open scope for policy deals!
Evolution of the multi-pollutant/multi-effect approach : RAINS for the Second Sulfur Protocol
Evolution of the multi-pollutant/multi-effect approach : RAINS for the Gothenburg Protocol
Evolution of the multi-pollutant/multi-effect approach : RAINS includes fine particles
Evolution of the multi-pollutant/multi-effect approach : GAINS includes interactions with greenhouse gases
Conclusions Integrated assessment can greatly improve the policy relevance of scientific assessments A structured dialogue between negotiators and modellers is essential With increasing marginal costs of the remaining measures, capturing the full set of multiple benefits of pollution control measures will be critical: Integrated assessment modelling offers a practical approach
20 years assessment of forest soil acidification 1984 and : CAFE assessment for : RAINS 1.1 assessment for 2010 Percentage of forest area with acid deposition above critical loads