Joeri Rogelj profile picture

Joeri Rogelj

Senior Research Scholar

Transformative Institutional and Social Solutions Research Group

Energy, Climate, and Environment

Senior Research Scholar

Integrated Assessment and Climate Change Research Group

Energy, Climate, and Environment


Dr. Joeri Rogelj is a senior research scholar in the Energy, Climate, and Environment (ECE) Program of the International Institute for Applied Systems Analysis (IIASA). He explores how societies can transform towards more sustainable futures. His research activities cross many disciplinary boundaries, connecting Earth system sciences to the study of societal change and policy.

He has published on the potential effectiveness of international climate agreements including the Copenhagen Accord and the Paris Agreement, carbon budgets, the urgency of climate mitigation action, global net zero emission targets, the interaction between climate and sustainable development, emission pathways that limit global warming to 1.5°C and 2°C, and climate justice.

Over the past decade, Dr Rogelj has contributed to several major scientific climate change assessments informing the international climate negotiations under the UNFCCC. He is a long-serving lead author on the annual Emissions Gap Reports by the United Nations Environment Programme (UNEP). He contributed to the physical science and climate change mitigation assessment of Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), served as a Coordinating Lead Author on mitigation pathways for the IPCC Special Report on 1.5?C of Global Warming, and is currently a Lead Author for the IPCC's Sixth Assessment. He continues to follow the UNFCCC climate negotiations as a scientific advisor and was in 2019, the youngest member serving on the UN Secretary-General's Climate Summit's Science Advisory Group. Dr. Rogelj also holds a position as a Lecturer in Climate Change and the Environment at the Grantham Institute at Imperial College London.

Dr. Rogelj holds a PhD in climate science from ETH Zurich, Switzerland, and an MSc in Engineering and a postgraduate degree in Cultures and Development Studies, both from KU Leuven, Belgium. Before joining the Grantham Institute, he held research positions at the Potsdam Institute for Climate Impact Research (PIK, Germany), as a post-doctoral researcher at ETH Zurich, and as a Senior Research Scholar at the International Institute for Applied Systems Analysis (IIASA, Austria) with whom he continues to collaborate. His professional background further includes three years as a project engineer in the field of rural electrification and drinking water systems in Rwanda.

In 2011 he received the Peccei Award for outstanding research by a young scientist, and in 2014 he received the ETH Medal for his outstanding doctoral dissertation. In 2016, he was awarded the inaugural Piers Sellers Award for his world-leading contributions to solution-focused climate research. Since 2019, he has been a Web of Science Highly Cited Researcher representing the top 1% impactful researchers in the field of Energy & Environment.

Last update: 13 APR 2021


Gambhir, A., Mittal, S., Lamboll, R.D., Grant, N., Bernie, D., Gohar, L., Hawkes, A., Köberle, A., Rogelj, J. , & Lowe, J.A. (2023). Adjusting 1.5 degree C climate change mitigation pathways in light of adverse new information. Nature Communications 14 (1) e5117. 10.1038/s41467-023-40673-4.

European Scientific Advisory Board on Climate Change (2023). Scientific advice for the determination of an EU-wide 2040 climate target and a greenhouse gas budget for 2030–2050. European Scientific Advisory Board on Climate Change 10.2800/609405.

Rogelj, J. , Fransen, T., den Elzen, M.G.J., Lamboll, R.D., Schumer, C., Kuramochi, T., Hans, F., Moldijk, S., & Portugal-Pereira, J. (2023). Credibility gap in net-zero climate targets leaves world at high risk. Science 380 (6649) 1014-1016. 10.1126/science.adg6428.

Forster, P.M., Smith, C.J. , Walsh, T., Lamb, W.F., Lamboll, R., Hauser, M., Ribes, A., Rosen, D., Gillett, N., Palmer, M.D., Rogelj, J. , von Schuckmann, K., Seneviratne, S.I., Trewin, B., Zhang, X., Allen, M., Andrew, R., Birt, A., Borger, A., Boyer, T., Broersma, J.A., Cheng, L., Dentener, F., Friedlingstein, P., Gutiérrez, J.M., Gütschow, J., Hall, B., Ishii, M., Jenkins, S., Lan, X., Lee, J., Morice, C., Kadow, C., Kennedy, J., Killick, R., Minx, J.C., Naik, V., Peters, G.P., Pirani, A., Pongratz, J., Schleussner, C.F., Szopa, S., Thorne, P., Rohde, R., Rojas Corradi, M., Schumacher, D., Vose, R., Zickfeld, K., Masson-Delmotte, V., & Zhai, P. (2023). Indicators of Global Climate Change 2022: annual update of large-scale indicators of the state of the climate system and human influence. Earth System Science Data 15 (6) 2295-2327. 10.5194/essd-15-2295-2023.