Second UCCRN Assessment Report on Climate Change and Cities (ARC3.2) (2018)

Climate Change and Cities: Second Assessment Report of the Urban Climate Change Research Network (UCCRN ARC3.2) out now!

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The Urban Climate Change Research Network’s Second Assessment Report on Climate Change in Cities (ARC3.2) is the second in a series of global, science–based reports to examine climate risk, adaptation, and mitigation efforts in cities. The book explicitly seeks to explore the implications of changing climatic conditions on critical urban physical and social infrastructure sectors and intersectoral concerns. The primary purpose of ARC3.2 is to inform the development and implementation of effective urban climate change policies, leveraging ongoing and planned investments for populations in cities of developing, emerging, and developed countries. This volume, like its predecessor, will be invaluable for a range of audiences involved with climate change and cities: mayors, city officials and policymakers; urban planners; policymakers charged with developing climate change mitigation and adaptation programs; and a broad spectrum of researchers and advanced students in the environmental sciences.


The UCCRN hosted the ARC3.2 International Initiating Workshop from September 17-19, 2013 at Columbia University in New York City. At the Initiating Workshop, over 115 participants from both developed and developing country cities gathered to define the content and structure of ARC3.2, set a timeline for writing, review, and publication, and develop extended outlines for the report.

The UCCRN ARC3.2 Midterm Authors Workshop took place from September 28-30, 2014 at The Crystal in London, and served as the midpoint ‘check-in’ as the Second Assessment Report on Climate Change and Cities (ARC3.2) heads towards publication in late 2015. Participants included 80 urban climate change experts, stakeholders, and practitioners from over 40 cities in Asia, Australia, Europe, Africa and the Americas. This report serves as a synopsis of the event and the key themes that emerged.

ARC3.2 Summary for City Leaders was presented in December 2015 at a UCCRN side session at the 21st UNFCCC Conference of the Parties (COP21) in Paris.