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PIK scientists are actively involved in the activities of the Intergovernmental Panel on Climate Change (IPCC).

During the IPCC’s fifth assessment cycle, from 2008 to 2015, Prof. Ottmar Edenhofer was joint Co-Chair of the IPCC Working Group III “Mitigation of Climate Change“. The WGIII Technical Support Unit (TSU) was hosted by PIK at that time and coordinated the Working Group’s activities.

The WGIII contribution to the Fifth Assessment Report (AR5) of the IPCC was finalized and released in April 2014. Ottmar Edenhofer and members of the WGIII TSU were also authors of the IPCC’s Synthesis Report, published in November 2014, concluding the Fifth Assessment. During the course of the IPCC’s fifth assessment cycle, the WGIII also published the Special Report on Renewable Energy Sources and Climate Change Mitigation.

PIK scientists also contributed to the IPCC Working Groups I and II in the Fifth Assessment Report, authoring chapters on issues ranging from sea-level change to assessing transformation pathways.


PIK authors continue to contribute to the IPCC's 6th Assessment Cycle (2016-2022). In 2017 and 2018 they contributed to the Special Report on Global Warming of 1.5°C (Summary for Policy Makers: Elmar Kriegler; Chapter 2 on 1.5°C mitigation pathways: Elmar Kriegler, Gunnar Luderer, Alexander Popp) and in 2018 and 2019 to the Special Report on Climate Change and Land (Chapter 2 on Land-Climate Interactions: Alexander Popp; Chapter 5 on Food Security: Prajal Pradhan).

Several PIK researchers will also contribute their expertise to the Sixth Assessment Report, to be published in 2021-2022. They will serve as chapter authors for the chapters Ocean, cryosphere, and sea level change (Working group 1 Report; Anders Levermann), Key risks across sectors and regions (Working Group 2 report; Katja Frieler), Mitigation pathways compatible with long-term goals (Working Group 3 report; Elmar Kriegler), Agriculture, Forestry, and Other Land Uses (Working Group 3 report; Alexander Popp), and International cooperation (Working Group 3 report; Detlef Sprinz).

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