Bridging the scale between the local particular and the global universal in climate change assessments of cities

Abstract

Identifying gaps in urban climate change assessment is crucial for developing the new Intergovernmental Panel on Climate Change (IPCC) special report on cities. To bridge the gap between the understanding of local interventions and global climate goals, we call for the strengthening of assessment tools such as urban typologies, case study synthesis and big geospatial data studies. We sort research gaps into five overarching themes: (1) urban form, (2) data and artificial intelligence, (3) policies and governance, (4) system transformation and (5) potentials, costs and losses. Using these methods for categorizing and analyzing cities based on shared characteristics will enable the tailoring and scaling of local climate solutions to global contexts. Urban climate action is essential generally and is in the spotlight given the upcoming IPCC focus. The authors propose five gaps in urban climate change research and four paths for tackling them.