Cities and urbanising areas are currently home to over half the world's population. What happens in cities is crucial to successful adaptation . By 2050, over two thirds of the world's population is expected to be urban, many living in unplanned and informal settlements and in smaller urban centres in Africa and Asia  . Between 2015 and 2020, urban populations globally have grown by about 397 million people, with more than 90% of this growth taking place in less developed countries . Projections of the number of people expected to live in urban areas highly exposed to climate change impacts have also increased, exacerbating future risks under a range of climate scenarios. Rates of population growth are most pronounced in smaller and medium-sized settlements of up to 1 million people .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report