A California Toolkit for Heat Resilience in Underserved Environments


Extreme HeatHeat is increasingly brutal in California’s Central Valley, where low incomes, poor air quality, old homes, and high utility bills disadvantage many residents.  The good news is that we can act now on preventative strategies to mitigate heat health impacts. The multi-disciplinary Cal-THRIVES project has developed a cooling toolkit for local and state stakeholders (cooling toolkit will be available in May 2022) with the following objectives:

  • Increase awareness of heat-related vulnerability 
  • Identify areas that are vulnerable to extreme heat events
  • Remedy the built environment, such as building retrofits & increases to tree canopy
  • Enhance community and home cooling programs
  • Improve social capital and connectivity at the neighborhood level

Cal-Thrives Community EngagementOur research and heat-resilience recommendations incorporate both community inputs and science:

  • Community Engagement
  • Cooling center characterization and improvements
  • Neighborhood-scale building modeling
  • Outdoor measure modeling

Related publications

  • Investigation of pre-cooling as a recommended measure to improve thermal resilience of residential buildings during heat waves, accepted for publication to Building and Environment.


Lawrence Berkeley National Lab led the project and building modeling using CityBES

Indicia ConsultingIndicia Consulting social scientists led focus groups and in-depth individual interviews.

Susan Mazur-Stommen, Haley Gilbert



USCUniversity of Southern California led outdoor modeling using Envi-MET

George Ban-Weiss, Alexandra Bruce, Yuxi Liu, Kayley Butler


West Fresno Family Resource CenterWest Fresno Family Resource Center led for community outreach and phone surveys

Janice Mathurin, Yolanda Sue Randles




Welcome to FresnoWe also thank the Fresno Economic Opportunity Commission for energy assessment data and phone survey support. 







For any questions or further information on this project, please contact Max Wei ( or Ronnen Levinson (