High heat days are escalating and so are the number of people who will endure them

By 2050, the population of cooler coastal counties is projected to decrease by more than 1 million, while hotter inland areas are experiencing a population boom. This means more people will be living in areas that will have the most extremely hot days.

Table of California counties by number of historical and projected high heat days and population change by 2050
Chart: Arfa Momin, CalMattersSource: Population projections prepared by the California Department of Finance, Demographic Research Unit. Heat projections from Scripps Institute of Oceanography and UC Berkeley.Created with Datawrapper