Gregor Kiesewetter
Senior Research Scholar
Pollution Management Research Group
Energy, Climate, and Environment Program
Biography
Gregor Kiesewetter is an atmospheric physicist. He joined the Mitigation of Air pollution& Greenhouse gases (MAG) Program in November 2011 to work on the improvement of the GAINS model. In particular, Dr. Kiesewetter’s topics include the introduction of a downscaling methodology linking the different spatial scales of air pollution impacts in GAINS (regional to street-level), as well as further advancing the treatment of radiative forcing in GAINS.
Dr. Kiesewetter graduated from the University of Vienna with a degree in physics in 2006, and earned his PhD in environmental physics from the University of Bremen, Germany, in 2011. During his PhD studies, he worked in the field of atmospheric chemistry transport modeling and satellite data assimilation, identifying anthropogenic and natural contributions to changes in the ozone layer.
Before joining IIASA as a research scholar, Dr. Kiesewetter participated in the 2009 Young Scientists Summer Program (YSSP) working on long-range transport of European air pollution to the Arctic and connections to hemispheric modes of climate variability. For his study, he was awarded IIASA’s Peccei fellowship in 2010, and returned to IIASA in summer 2011.
Last update: 07 DEC 2011
Publications
Srivastava, P., Purohit, P. , Schöpp, W. , Wagner, F. , Klimont, Z. , Kiesewetter, G. , Dey, S., Nygard, J., Tiwari, A., Sharma, M., & Amann, M. (2026). Integrated assessment of cost-effective air quality mitigation pathways for Uttar Pradesh, India. DOI:10.5194/egusphere-egu26-6350. In: EGU General Assembly 2026, 03 May - 08 May 2026, Vienna.
Kriit, H., Chen-Xu, J., Semenza, J., Heiliger, H., Markandya, A., Dasandi, N., Jankin, S., van Daalen, K., Achebak, H., Alari, A., Alcayna, T., Ball, E., Ballester, J., Bechara, H., Callaghan, M., van Cauwenberghe, M., Charnley, G., Courtenay, O., Cirach, M., Garcia-Corral, P., Cross, T., Dasgupta, S., Dickson, Z., Eckelman, M., Erfort, C., Fransson, P., Farooq, Z., Gasparyan, O., Hamilton, I., Hesselman, M., Hänninen, R., Hsu, S., Janoš, T., Jatkar, H., Jay, O., Kennard, H., Khanna, K., Kiesewetter, G. , Lowe, R., Lührsen, D., Maia, C., Martinez-Urtaza, J., Minx, J., Nieuwenhuijsen, M., Palamarchuk, J., San José Plana, A., Repke, T., Roa-Contreras, J., Robinson, E., Scamman, D., Shartova, N., Sherman, J., Sirotkina, E., Singh, P., Sofiev, M., Springmann, M., Stucki, L., Tartarini, F., Triñanes, J., Walawender, M., Romanello, M., Antó, J., Nilsson, M., Tonne, C., & Rocklöv, J. (2026). The 2026 Europe report of the Lancet Countdown on health and climate change: narrowing window for decisive health action. The Lancet Public Health 10.1016/S2468-2667(26)00025-3. (In Press)
Purohit, P. , Schöpp, W. , Srivastava, P., Wagner, F. , Klimont, Z. , Kiesewetter, G. , Dey, S., Nygard, J., Tiwari, A., Sharma, M., Amann, M. , Gomez Sanabria, A. , Dedring, S., Joshi, P., Lal, H., Ghosh, S., Sander, R. , & Nguyen, B. (2026). Cost-effective mitigation strategies for air quality management in Uttar Pradesh, India. Journal of Environmental Management 405 e129784. 10.1016/j.jenvman.2026.129784.
Kiesewetter, G. , Filippidou, F., Tsiropoulos, I., Witzke, P., Petropoulou, V., Karkatsoulis, P., Kokkinos, C., Salputra, G., Nieuwenhuijsen, M.J., Velázquez-Cortés, D., Hsu, S.-C., Hamilton, I., Springmann, M., Kuehnle-Nelson, L., Slater, J., Lindl, F. , Guéret, S., Zhang, S. , Tonne, C., & Klimont, Z. (2026). Emission Scenarios for Europe under the CATALYSE Project: Beyond the Green Deal. IIASA Report. Laxenburg, Austria: IIASA
Cai, W., Zhang, C., Zhang, S., Bai, Y., Chen, B., Chen, J., Cheng, L., Fan, W., Feng, L., Guan, D., Hong, C., Hu, Y., Hua, J., Huang, C., Huang, H., Huang, J., Huang, X., Ji, J.S., Jiang, Q., Jiang, X., Kan, H., Kang, J., Kiesewetter, G. , Li, B., Li, G., Li, T., Liao, W., Lin, B., Lin, H., Liu, H., Liu, Q., Liu, X., Liu, Y., Liu, Z., Liu, Z., Liu, Z., Lou, S., Lu, B., Lu, C., Ma, W., Mi, Z., Miao, Y., Mo, G., Repke, T., Ren, C., Romanello, M., Shen, J., Su, J., Su, R., Sun, Y., Tang, X., Walawender, M., Wang, C., Wang, H., Wang, Q., Wang, Q., Wang, Y., Wei, W., Wen, S., Xiong, H., Xu, B., Yang, X., Yang, Y., Yao, F., Yin, M., Yu, L., Yu, Z., Zhang, J., Zhang, R., Zhang, S., Zhang, S. , Zhang, Z., Zhao, M., Zhao, Q., Zheng, D., Zhou, H., Zhou, J., Zhou, Y., Luo, Y., & Gong, P. (2025). The 2025 China report of the Lancet Countdown on health and climate change: empowering cities for synergistic action. The Lancet Public Health 10 (12) 1066-1085. 10.1016/S2468-2667(25)00230-0.