ENGAGE is a global consortium of international and multidisciplinary leading research groups, coordinated by IIASA, aiming to co-produce knowledge for designing cost-effective, technologically sound, socially and politically feasible pathways that can meet the objectives of the Paris Agreement. ENGAGE will also quantify avoided climate change impacts at the regional and national levels and identify concrete policy portfolios that maximize co-benefits and minimize trade-offs.
Knowledge co-production will be achieved through an iterative stakeholder dialogue process that will include workshops, surveys and frequent interactions and feedback among scientists, policy makers, civil society, the private sector, and other key stakeholders. ENGAGE will be inclusive of major emitters and selected developing countries which will ensure the credibility and legitimacy of the scientific and policy insights.
ENGAGE will also address a historical shortcoming of IAM-based pathways — insufficient attention to social, political, and certain technological constraints and enablers of mitigation efforts — by developing and operationalizing the concept of multidimensional feasibility of decarbonization policies and pathways. To accomplish this, ENGAGE will utilize empirical analysis, statekholder dialogue, and conceptual insights from the social sciences to develop a tool which will subsequently be used to assess and improve the feasibility of decarbonization pathways.
ENGAGE will quantify avoided climate change impacts through analysis of the exposure and associated costs for individual sectors and regions to climate change at different levels of and timing for global peak temperature. A particular focus will be on quantifying the benefits (or trade-offs) of climate policies on biodiversity, food, poverty, water, air quality, health, and employment, particularly for vulnerable populations.
Partners
- International Institute for Applied Systems Analysis (IIASA) (Austria) – Coordinator
- Potsdam Institute for Climate Impact Research (PIK) (Germany)
- PBL Netherlands Environmental Assessment Agency (Netherlands)
- Euro-Mediterranean Center on Climate Change (CMCC) (Italy)
- E3 Modelling (Greece)
- Central European University (Hungary)
- COPPE, Universidade Federal do Rio de Janeiro (Brazil)
- The Energy and Resources Institute (TERI) (India)
- National Institute for Environmental Studies (Japan)
- NewClimate Institute (Germany)
- National Research University Higher School of Economics (Russia) | until April 2022
- Wageningen University (Netherlands)
- Tsinghua University (China)
- Energy Research Institute (China)
- National Center for Climate Change Strategy and International Cooperation (China)
- Indian Institute of Management (IIMA) (India)
- Research Institute of Innovative Technology for the Earth (RITE) (Japan)
- Korea Advanced Institute of Science and Technology (Korea)
- University of Seoul Industry Cooperation Foundation (Korea)
- Sirindhorn International Institute of Technology – Thammasat University (Thailand)
- International University – Vietnam National University Ho Chi Minh City (Vietnam)
- Bandung Institute of Technology (Indonesia)
- Jill Jaeger (Austria)
- Utrecht University (Netherlands)
- Kyoto University (Japan)
Associated Partners
- Joint Global Change Research Institute (JGCRI) (United States)
- SHURA Energy Transition Center (Turkey)
- TNO (Netherlands)
ENGAGE works in close collaboration with its sister project: Next Generation of Advanced Integrated Assessment Modelling to Support Climate Policy Making (NAVIGATE).
© European Union
This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No 821471 (ENGAGE).
Published papers:
Tagomori, I.S., Diuana, F.A., Baptista, L.B., Bertram, C., Dafnomilis, I., Drouet, L., Fosse, F., Fragkiadakis, D., Fricko, O. , Hooijschuur, E., Iyer, G., Kikstra, J. , Krey, V. , Luderer, G., Ou, Y., Reis, L.A., Richters, O., Rochedo, P.R.R., Vrontisi, Z., Weitzel, M., Zwerling, M., van Ruijven, B. , Schaeffer, R., & van Vuuren, D. (2026). Promising climate progress from net-zero ambitions to the Paris Agreement goal. Nature Climate Change 10.1038/s41558-026-02615-y.
Scheifinger, K. , Brutschin, E. , Mintz-Woo, K. , Zimm, C. , Kikstra, J. , Rogelj, J. , Żebrowski, P. , Schinko, T. , Pachauri, S. , Sovacool, B., Fritz, L., & Riahi, K. (2026). Exploring patterns of distributional justice in global climate change mitigation scenarios. npj Climate Action 5 (1) e39. 10.1038/s44168-026-00364-4.
Brutschin, E. , Bertram, C., Baptista, L.B., Bosetti, V., Daioglou, V., de Boer, H.S., Drouet, L., Fosse, F., Fragkiadakis, D., Fragkiadakis, K., Fricko, O. , Fujimori, S. , Kejun, J., Krey, V. , Kikstra, J. , Pianta, S., Pelz, S. , Riahi, K. , Richters, O., Rodrigues, R., Schaeffer, R., Scheifinger, K. , Silva, D., Tagomori, I., van Ruijven, B. , van Vuuren, D., & Vrontisi, Z. (2025). Aligning differentiated mitigation capacity with the Paris agreement goals. Environmental Research: Climate 4 (4) e045012. 10.1088/2752-5295/ae0ea5.
Rodés-Bachs, C., Drouet, L., Rafaj, P. , Tavoni, M., & Reis, L.A. (2025). Beyond the limit: The estimated air pollution damages of overshooting the temperature target. Science Advances 11 (42) eadu7590. 10.1126/sciadv.adu7590.
Byers, E. , Werning, M., Perrette, M., Schwind, N., Krey, V. , Riahi, K. , & Schleussner, C.-F. (2025). Fast climate impact emulation for global temperature scenarios with the rapid impact model emulator (RIME). Environmental Research: Climate 4 (3) e035011. 10.1088/2752-5295/adee3d.
Zhao, S. , Fujimori, S. , Min, J. , Kikstra, J. , Hasegawa, T., Oshiro, K., & Vishwanathan, S.S. (2025). The multi-faceted global poverty and income inequality landscape in a decarbonizing world. Cell Reports Sustainability 2 e100487. 10.1016/j.crsus.2025.100487.
Li, P., Zhu, R., McJeon, H., Byers, E. , Zhou, P., & Ou, Y. (2025). Using deep learning to generate key variables in global mitigation scenarios. Nature Climate Change 10.1038/s41558-025-02352-8.
Kikstra, J. , Daioglou, V., Min, J. , Sferra, F., Soergel, B., Kriegler, E., Lee, H., Mastrucci, A. , Pachauri, S. , Rao, N. , Rauner, S., van Vuuren, D., Riahi, K. , van Ruijven, B. , & Rogelj, J. (2025). Closing decent living gaps in energy and emissions scenarios: introducing DESIRE. Environmental Research Letters 20 (5) e054038. 10.1088/1748-9326/adc3ad.
Werning, M., Frank, S. , Hooke, D., Nguyen, B. , Rafaj, P. , Satoh, Y., Wögerer, M., Krey, V. , Riahi, K. , van Ruijven, B. , & Byers, E. (2024). Climate Solutions Explorer - hazard, impacts and exposure data V1.1. 10.5281/zenodo.14524342.
Soergel, B., Rauner, S., Daioglou, V., Weindl, I., Mastrucci, A. , Carrer, F., Kikstra, J. , Ambrósio, G., Aguiar, A.P.D., Baumstark, L., Bodirsky, B.L., Bos, A., Dietrich, J.P., Dirnaichner, A., Doelman, J.C., Hasse, R., Hernandez, A., Hoppe, J., Humpenöder, F., Iacobuţă, G.I., Keppler, D., Koch, J., Luderer, G., Lotze-Campen, H., Pehl, M., Poblete Cazenave, M. , Popp, A., Remy, M., van Zeist, W.-J., Cornell, S., Dombrowsky, I., Hertwich, E.G., Schmidt, F., van Ruijven, B. , van Vuuren, D., & Kriegler, E. (2024). Multiple pathways towards sustainable development goals and climate targets. Environmental Research Letters 19 (12) e124009. 10.1088/1748-9326/ad80af.
Werning, M., Hooke, D., Krey, V. , Riahi, K. , van Ruijven, B. , & Byers, E. (2024). Global warming level indicators of climate change and hotspots of exposure. Environmental Research: Climate 3 (4) e045015. 10.1088/2752-5295/ad8300.
Kazlou, T., Cherp, A., & Jewell, J. (2024). Feasible deployment of carbon capture and storage and the requirements of climate targets. Nature Climate Change 14 (10) 1047-1055. 10.1038/s41558-024-02104-0.
Frank, S. , Derci Augustynczik, A.L., Havlik, P. , Boere, E., Ermolieva, T., Fricko, O. , Di Fulvio, F. , Gusti, M., Krisztin, T. , Lauri, P., Palazzo, A. , & Wögerer, M. (2024). Enhanced agricultural carbon sinks provide benefits for farmers and the climate. Nature Food 5 (9) 742-753. 10.1038/s43016-024-01039-1.
Bertram, C., Brutschin, E. , Drouet, L., Luderer, G., van Ruijven, B. , Aleluia Reis, L., Baptista, L.B., de Boer, H.-S., Cui, R., Daioglou, V., Fosse, F., Fragkiadakis, D., Fricko, O. , Fujimori, S. , Hultman, N., Iyer, G., Keramidas, K., Krey, V. , Kriegler, E., Lamboll, R.D., Mandaroux, R., Rochedo, P., Rogelj, J. , Schaeffer, R., Silva, D., Tagomori, I., van Vuuren, D., Vrontisi, Z., & Riahi, K. (2024). Feasibility of peak temperature targets in light of institutional constraints. Nature Climate Change 14 954-960. 10.1038/s41558-024-02073-4.
Ermolieva, T., Havlik, P. , Derci Augustynczik, A.L., Frank, S. , Balkovič, J. , Skalský, R. , Deppermann, A., Nakhavali, A. , Komendantova, N. , Kahil, T. , Wang, G., Folberth, C. , & Knopov, P.S. (2024). Tracking the Dynamics and Uncertainties of Soil Organic Carbon in Agricultural Soils Based on a Novel Robust Meta-Model Framework Using Multisource Data. Sustainability 16 (16) e6849. 10.3390/su16166849.
Zhang, S., Chen, W., Zhang, Q., Krey, V. , Byers, E., Rafaj, P. , Nguyen, B. , Awais, M. , & Riahi, K. (2024). Targeting net-zero emissions while advancing other sustainable development goals in China. Nature Sustainability 7 1107-1119. 10.1038/s41893-024-01400-z.
Fricko, O. , Frank, S. , Gidden, M. , Huppmann, D. , Johnson, N., Kishimoto, P. , Kolp, P. , Lovat, F., McCollum, D., Min, J. , Rao, Shilpa, Riahi, K. , Rogner, H. , van Ruijven, B. , Vinca, A. , Zakeri, B. , Derci Augustynczik, A.L., Deppermann, A., Ermolieva, T., Gusti, M., Lauri, P., Heyes, C. , Schöpp, W. , Klimont, Z. , Havlik, P. , & Krey, V. (2024). MESSAGEix-GLOBIOM R11 no-policy baseline V.2. 10.5281/zenodo.5793869.
Suzuki, M., Jewell, J. , & Cherp, A. (2023). Have climate policies accelerated energy transitions? Historical evolution of electricity mix in the G7 and the EU compared to net-zero targets. Energy Research & Social Science 106 e103281. 10.1016/j.erss.2023.103281.
Dekker, M.M., Daioglou, V., Pietzcker, R., Rodrigues, R., de Boer, H.-S., Dalla Longa, F., Drouet, L., Emmerling, J., Fattahi, A., Fotiou, T., Fragkos, P., Fricko, O. , Gusheva, E., Harmsen, M., Huppmann, D. , Kannavou, M., Krey, V. , Lombardi, F., Luderer, G., Pfenninger, S., Tsiropoulos, I., Zakeri, B. , van der Zwaan, B., Usher, W., & van Vuuren, D. (2023). Identifying energy model fingerprints in mitigation scenarios. Nature Energy 10.1038/s41560-023-01399-1.
News
18 March 2026
IIASA leadership strengthens partnerships during mission to Brazil
During a recent visit to Brazil, IIASA Director General, Hans Joachim (John) Schellnhuber, and Deputy Director General, Karen Lips, met with representatives from government agencies, research institutes, universities, and NGOs to explore opportunities for collaboration on some of the world’s most pressing sustainability challenges.
12 August 2024
Balancing technology and governance are key to achieving climate goals
Despite advancements in clean energy, global CO2 emissions continue to rise. IIASA researchers contributed to a new international study that underscores the importance of integrating technological advancements with robust institutional capacities to formulate effective climate policies.
Annual Report 2023
Exploring climate solutions
In 2023, IIASA launched two innovative webtools offering a wealth of data and insights into climate mitigation and exposure to impacts stemming from development and climate change.
Events
Bonn, Germany
IIASA at the UNFCCC Bonn Climate Change Conference 2025
Brussels, European Commission DG CLIMA (Breydel 2, Meeting Room Floor 005 Room 374-402-416)
Accelerating Climate Action Towards a Rapid and Just Transition
Gothenburg, Sweden / Virtual Event