The Summary for Urban Policymakers

The Summary for Urban Policymakers (SUP)

The Intergovernmental Panel on Climate Change (IPCC) brings out periodic reports based on the latest and most comprehensive scientific assessment of climate change. The initial volume of the Summary for Urban Policymakers (SUP) series was released on November 2018 at COP23, and distilled findings from the IPCC Special Report on 1.5°C.


Download the consolidated report for SUP Volumes I – III.

The focus for the SUP initiative are the IPCC AR6 Reports and delivering companion reports to the IPCC’s series of three Working Group Reports. The SUP series will be launched at COP27 in Sharm-El-Shaikh, Egypt on 11 November 2022. The SUP initiative is a series of three summary reports: 

Key Messages SUP Volumes I – III

Watch Aromar Revi, Director, Indian Institute for Human Settlements; and IPCC Coordinating Lead Author, distill the key messages from the SUP Volumes I-III

The SUP series is supported by a partnership of the Global Covenant of Mayors for Climate & Energy (GCoM) alliance for city climate leadership, the Resilience First business network, the Indian Institute for Human Settlements, the German Federal Ministry for Economic Affairs and Climate Action in collaboration with the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), and led by Resilience Rising.


IIHS’ Engagement with SUP


The SUP is a collaborative effort with teams from partner organisations working across geographies and areas of expertise.


SUP reports are authored by the world’s leading climate scientists – a selection of the same individuals who have produced the IPCC reports – who have volunteered to support this effort in their individual capacities, working in consultation with city, local and regional governments; cities and city networks; and businesses in every global region.


IIHS has one of the largest concentrations of IPCC authors in a South Asian institution, with contributions across the AR5 and AR6 cycles, and two SR1.5 derivative reports – the Summary for Urban Policymakers and GCF supported Summary for Financial Decision Makers.


IIHS anchors author engagement, technical support throughout the SUP initiative including the global and regional consultations; and lead the communications and design for SUP.


Our work on Climate Change


IIHS faculty have been deeply involved in intergovernmental processes including the framing and negotiation of the Sustainable Development Goals, the Sendai Framework and the Paris Climate Agreement. IIHS faculty work on the convergence of research, policy and practice at the intersection of sustainability science, climate science and new urban science.