Tessa Möller
Researcher
Integrated Climate Impacts Research Group
Energy, Climate, and Environment Program
Biography
Tessa Möller is a researcher in the Energy, Climate, and Environment Program. Her research focuses on the physical implications of overshooting the Paris Agreement's 1.5°C temperature limit on multi-centennial sea level rise as well as on climate tipping elements.Before joining IIASA, she worked as a student assistant in the Climate Science and Impacts team at Climate Analytics, Germany, focusing on the effectiveness of water-related adaptation options under climate change, as well as on the vulnerability of freshwater systems in Small Island Developing States.
She was a contributing author to Chapter 4 of the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6), acting as part of Working Group 2, and led the preparation of Box 4.2 focusing on ''Observed Risks, Projected Impacts and Adaptation Responses to Water Security in Small Island States''.
Last update: 15 APR 2025
Publications
Ritchie, P.D.L., Steinert, N.J., Abrams, J.F., Alkhayuon, H., Arnscheidt, C.W., Bochow, N., Chapman, R.R., Clarke, J., Dennis, D.P., Donges, J.F., Flores, B.M., Garbe, J., Högner, A. , Huntingford, C., Lenton, T.M., Lohmann, J., Lux-Gottschalk, K., Milkoreit, M., Möller, T., Pearce-Kelly, P., Pereira, L., Quinn, C., Schleussner, C.-F. , Stuenzi, S.M., Swingedouw, D., Van der Laan, L.N., Zickfeld, K., & Wunderling, N. (2026). The implications of overshooting 1.5 °C on Earth system tipping elements—a review. Environmental Research Letters 21 (4) e043001. 10.1088/1748-9326/ae3cad.
Schleussner, C.-F. , Högner, A. , Möller, T., Zimmer, A., & Kornhuber, K. (2025). Tipping Points in the Earth System in the context of the NGFS physical risk assessment – A short note. Network of Greening the Financial System
Nauels, A. , Nicholls, Z. , Möller, T., Hermans, T.H.J., Mengel, M., Kloenne, U., Smith, C. , Slangen, A.B.A., & Palmer, M.D. (2025). Multi-century global and regional sea-level rise commitments from cumulative greenhouse gas emissions in the coming decades. Nature Climate Change 15 1198-1204. 10.1038/s41558-025-02452-5.
Nauels, A. , Nicholls, Z. , Möller, T., Hermans, T.H.J., Mengel, M., Kloenne, U., Smith, C. , Slangen, A.B.A., & Palmer, M.D. (2025). Multi-century global and regional sea-level rise commitments from cumulative greenhouse gas emissions in the coming decades. 10.5281/zenodo.16572777.
Möller, T., Högner, A.E. , Schleussner, C.-F. , Bien, S., Kitzmann, N.H., Lamboll, R.D., Rogelj, J. , Donges, J.F., Rockström, J., & Wunderling, N. (2024). Achieving net zero greenhouse gas emissions critical to limit climate tipping risks. Nature Communications 15 (1) e6192. 10.1038/s41467-024-49863-0.