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Matthew Gidden

Senior Research Scholar

Integrated Assessment and Climate Change Research Group

Energy, Climate, and Environment Program

Senior Research Scholar

Sustainable Service Systems Research Group

Energy, Climate, and Environment Program


Matthew Gidden is a senior research scholar in the Integrated Assessment and Climate Change Research Group of the IIASA Energy, Climate, and Environment Program, where he focuses on studying sustainable pathways for meeting societal energy demand while mitigating changes to the climate and environment. He engages across a variety of scientific communities, investigating interdisciplinary issues ranging from anthropogenic emissions effects on climate and human health, to equitable approaches to global and national mitigation. He is particularly interested in the intersection of energy systems analysis and climate policy, having published widely in the scientific literature, as well as serving as an author of the 6th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC).

Gidden has strong experience in leading and managing scientific studies related to energy systems, anthropogenic emissions, and climate change. During his tenure as head of the Climate Policy Team at Climate Analytics, he co-led a team of over 30 scientific staff and policy analysts who conducted mitigation studies ranging from global analyses of aggregate national climate action to country-level, sectorally resolved, 1.5°C-consistent pathways. He previously worked as a research scholar at IIASA where he led Integrated Assessment Modeling (IAM) campaigns, and was one of the main developers of the MESSAGEix-GLOBIOM modeling framework.

Trained as a nuclear engineer, Gidden received his PhD and Master's degrees from the University of Wisconsin at Madison, US, and an undergraduate degree in the same field from Texas A&M University, also in the US. His research interests include investigating deep mitigation energy system pathways, the effects and impacts of climate change on populations, as well as adaptation options available under different scenarios of the future.

Last update: 28 JAN 2022


Kikstra, J.S. , Nicholls, Z.R.J., Smith, C.J. , Lewis, J., Lamboll, R.D., Byers, E. , Sandstad, M., Meinshausen, M., Gidden, M.J. , Rogelj, J. , Kriegler, E., Peters, G.P., Fuglestvedt, J.S., Skeie, R.B., Samset, B.H., Wienpahl, L., van Vuuren, D.P., van der Wijst, K.-I., Al Khourdajie, A., Forster, P.M., Reisinger, A., Schaeffer, R., & Riahi, K. (2022). The IPCC Sixth Assessment Report WGIII climate assessment of mitigation pathways: from emissions to global temperatures. Preprint 10.5194/egusphere-2022-471.

Schleussner, C.-F., Ganti, G., Rogelj, J. , & Gidden, M. (2022). An emission pathway classification reflecting the Paris Agreement climate objectives. Communications Earth & Environment 3 e135. 10.1038/s43247-022-00467-w.

Ou, Y., Iyer, G., Edmonds, J., Fawcett, A., Hultman, N., McFarland, J., Waldhoff, S., Gidden, M. , & McJeon, H. (2022). Transparency crucial to Paris climate scenarios—Response. Science 375 (6583) p. 828. 10.1126/science.abn9667.

Leblanc, F., Bibas, R., Mima, S., Muratori, M., Sakamoto, S., Sano, F., Bauer, N., Daioglou, V., Fujimori, S., Gidden, M. , Kato, E., Rose, S.K., Tsutsui, J., van Vuuren, D.P., Weyant, J., & Wise, M. (2022). The contribution of bioenergy to the decarbonization of transport: a multi-model assessment. Climatic Change 170 (3-4) e21. 10.1007/s10584-021-03245-3.