CliSAP successfully finished in 2018. Climate research continues in the Cluster of Excellence "CLICCS".


Universität Hamburg, Center for Earth System Research and Sustainability (CEN)
Research Unit Sustainability and Global Change (FNU)
Room 211
Grindelberg 5
20144 Hamburg

+49 40 42838 7007

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Research interests

Sustainable solutions of the climate problem; scientific themes in that context: Development and application of a Generalized Cost Benefit Analysis (including coupled climate-agro-energy-economy modelling), cost and risk assessment of mitigation

CliSAP Publications

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  • Li, C., Held, H., Hokamp, S., & Marotzke, J. (2020). Optimal temperature overshoot profile found by limiting global sea level rise as a lower-cost climate target. Science Advances, 6: eaaw9490. doi:10.1126/sciadv.aaw9490.
  • Khabbazan, M. M., & Held, H. (2018). On the Future Role of the most Parsimonious Climate Module in Integrated Assessment. Earth System Dynamics (Discussions), 135-155. doi:10.5194/esd-2017-40.
  • Held, H. (2017). Entscheidungen unter Unsicherheit in komplexen Systemen. In G. P. Brasseur, D. Jacob, & S. Schuck-Zöller (Eds.), Klimawandel in Deutschland: Entwicklung, Folgen, Risiken und Perspektiven (pp. 305-311). Berlin: Springer. doi:10.1007/978-3-662-50397-3_30.
  • Roshan, E., Khabbazan, M. M., & Held, H. (2016). A Scheme For Jointly Trading Off Costs And Risks Of Solar Radiation Management And Mitigation Under Long-Tailed Climate Sensitivity Probability Density Distributions. In EAERE 2016, Zurich.
  • Roth, N., Neubersch, D., & Held, H. (2015). Evaluating Delayed Climate Policy by Cost-Risk Analysis. In EAERE 2015 Helsinki.
  • Held, H. (2015). Climate targets and cost effective climate stabilization pathways. In L. Cifarelli (Ed.), Lecture Notes Joint EPS-SIF International School on Energy - Course 2 Energy: Basic Concepts and Forefront Ideas (pp. 305-322). doi:10.1051/epjconf/20159806002.
  • Neubersch, D., Held, H., & Otto, A. (2014). Operationalizing climate targets under learning: An application of cost-risk analysis. Climatic Change, 126, 305-318. doi:10.1007/s10584-014-1223-z.
  • Schmidt, H., & Held, H. (2014). Unsicherheiten in numerischen Klimasimulationen im Kontext der Entscheidungssituation. In Modellierung in der Climate Engineering-Forschung: Aussagekräftig trotz Unsicherheiten (pp. 12-14).
  • Prahl, B. F., Rybski, D., Kropp, J. P., Burghoff, O., & Held, H. (2012). Applying stochastic small-scale damage functions to German winter storms. Geophysical Research Letters, 39: L06806. doi:10.1029/2012GL050961.
  • Held, H. (2012). Wandel und Bestand – Spielräume und Grenzen. In Letzte Ausfahrt Wandel? Hamburger Gespräche für Naturschutz 2012 (pp. 10-15). Hamburg.