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The science behind setting an urban 1.5°C-aligned target


The Cities Guide for Climate Science-based Targets for cities was developed by a core of ‘cities’ partners CDP, C40, Global Covenant of Mayors, ICLEI – Local Governments for Sustainability (ICLEI), the World Resources Institute (WRI), and the Worldwide Fund for Nature (WWF).

Backed by months of technical research and testing, the guide assesses and explains three science-based climate target methodologies and their technical criteria. It advises cities on which methodology to use and how to use the methodologies to determine interim and net zero targets.

This workshop presents the process leading towards this report launch and the technicalities of the different methodologies reviewed.


  • Cesar Carreño, Head of Climate Data, ICLEI World Secretariat
  • Arminel Lovell, Cities Manager for Science-Based Targets, CDP
  • Angie Fyfe, Executive Director, ICLEI USA
  • Carla Mariño Viteri, Officer, Climate Data, ICLEI World Secretariat


Photo credit: richardjohnson / Shutterstock.com