A new report says heat is expected to increase in certain parts of California.
The San Francisco Chronicle says temperatures are projected to rise more than 10 degrees in certain fast-growing parts of the state.
High housing costs in coastal metro areas have pushed migration within the state to suburban and rural areas.
Average summer temperatures have risen by approximately three degrees Fahrenheit over the last 125 years in California, and projects say they could rise another nine degrees over the next 75 years.
Inland areas are projected to have greater increases than areas along the coast, with temperature jumps varying from 6 to 11 degrees in different parts of the state.
Among the counties at risk are Amador, Butte, Colusa, El Dorado, Glenn, Lassen, Modoc, Nevada, Placer, Plumas, Sacramento, Shasta, Sierra, Siskiyou, Sutter, Tehama, Yolo and Yuba in Northern California.
Southern California's Inland Empire, including San Bernardino and Riverside Counties.