This new PSI policy brief looks at the under-researched relationship between urbanization and climate-security. Globally the amount of people living in cities is one the rise and non-conflict violence in cities is on the rise. While cities worldwide face climate risks, cities of the global South are struggling most to combined the pace of urban growth with a lack of natural resources. This results in poor planning and highly unequal processes of urbanization, where tensions over these resources are on the rise.