Chris Heyes
Guest Senior Research Scholar
Pollution Management Research Group
Energy, Climate, and Environment Program
Biography
Chris Heyes is an Emeritus Research Scholar in the Pollution Management Research Group of the Energy, Climate, and Environment Program. He has been working at IIASA in the former Air Quality and Greenhouse Gases (AIR) Program and its forerunners since 1993.His original focus was the development of a simplified ozone formation module for the RAINS/GAINS integrated assessment model. Subsequently, he has been involved in various elements of the further enhancement of the GAINS model and its application to air quality policy questions, mostly in the areas of atmospheric dispersion and environmental impacts. He has made significant contributions to the extension of the RAINS/GAINS model to include particulate matter and the development of online versions of the model. More recent activities include the implementation of radiative forcing impacts from relatively short-lived species to extend the model’s capability to assess interactions between air quality and climate policies, and the generation of global emission fields.
Heyes studied chemistry at Oxford University, UK, where he received his BA degree. Subsequently, he carried out research on aspects of the atmospheric chemistry of chlorofluorocarbons relevant to the depletion of stratospheric ozone. Before joining IIASA, he worked at the former Warren Spring Laboratory, Stevenage, UK, gaining experience in a wide range of air pollution problems ranging from odor abatement to acid deposition and air quality modeling.
Last update: 29 JUN 2021
Publications
Hayes, F., Sharps, K., van Caspel, W.E., Klimont, Z. , Heyes, C. , & Fagerli, H. (2025). Global efforts addressing methane emissions is a key factor to further reducing ozone-induced yield losses of crops in Europe. Environmental Pollution 382 e126654. 10.1016/j.envpol.2025.126654.
Mahowald, N.M., Li, L., Vira, J., Prank, M., Hamilton, D.S., Matsui, H., Miller, R.L., Lu, P.L., Akyuz, E., Meidan, D., Hess, P., Lihavainen, H., Wiedinmyer, C., Hand, J., Alaimo, M.G., Alves, C., Alastuey, A., Artaxo, P., Barreto, A., Barraza, F., Becagli, S., Calzolai, G., Chellam, S., Chen, Y., Chuang, P., Cohen, D.D., Colombi, C., Diapouli, E., Dongarra, G., Eleftheriadis, K., Engelbrecht, J., Galy-Lacaux, C., Gaston, C., Gomez, D., González Ramos, Y., Harrison, R.M., Heyes, C. , Herut, B., Hopke, P., Hüglin, C., Kanakidou, M., Kertesz, Z., Klimont, Z. , Kyllönen, K., Lambert, F., Liu, X., Losno, R., Lucarelli, F., Maenhaut, W., Marticorena, B., Martin, R.V., Mihalopoulos, N., Morera-Gómez, Y., Paytan, A., Prospero, J., Rodríguez, S., Smichowski, P., Varrica, D., Walsh, B., Weagle, C.L., & Zhao, X. (2025). AERO-MAP: a data compilation and modeling approach to understand spatial variability in fine- and coarse-mode aerosol composition. Atmospheric Chemistry and Physics 25 (9) 4665-4702. 10.5194/acp-25-4665-2025.
Klimont, Z. , Kiesewetter, G. , Schöpp, W. , Gomez Sanabria, A. , Rafaj, P. , Purohit, P. , Borken-Kleefeld, J. , Wagner, F. , Heyes, C. , Höglund-Isaksson, L. , Nguyen, B. , Sander, R. , & Warnecke, L. (2025). Chapter 1: Bringing Clean Air, Better Health, A Stable Climate and Other Benefits to the ASEAN Region. In: Clean Air and Climate Solutions for ASEAN. Eds. United Nations Environment Programme, pp. 1-17 United Nations Environment Programme. ISBN 9789280742138 10.59117/20.500.11822/47268.
European Commission & Directorate-General for Environment (2025). Support to the development of the fourth clean air outlook – Final report. Publications Office of the European Union , Luxembourg. doi/10.2779/8768689.
World Bank (2025). Clean Air for Hanoi: What will it Take? World Bank