Exceeding and returning to 1.5°C: what are the knowledge gaps?
Friday, 1st December 2023

The Session addresses the concept of overshoot - exceeding then returning to or below a level of global warming - in the context of the long term global temperature goal. Overshoot in the IPCC Sixth Assessment Report (AR6) cuts across all aspects of the Climate Change Assessment of Climate Responses, Impacts, Adaptation and Mitigation. Presentations will discuss how overshoot has been assessed from a conceptual perspective, in future climate and socio-economic scenarios, the implications for climate, including extremes, for natural and human systems, and for policy development. The session will include discussions on the state of scientific knowledge across disciplines, the gaps and needs to inform policy development, including in relation to response options, and the UNFCCC process. 

Katherine  CALVIN
Katherine CALVIN

Aïda  Diongue-Niang
Aïda Diongue-Niang

Agence Nationale de l'Aviation Civile et de la Météorologie du Sénégal -ANACIM
Jan  Fuglestvedt
Jan Fuglestvedt

Center for International Climate and Environmental Research Oslo (CICERO)
Oliver  GEDEN
Oliver GEDEN

German Institute for International and Security Affairs (SWP)
Adelle  Thomas
Adelle Thomas

University of The Bahamas; Climate Analytics
Christopher  Trisos
Christopher Trisos

University of Cape Town
Zinta  Zommers
Zinta Zommers

United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA)
Exceeding and returning to 1.5°C

What are the knowledge gaps

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