The maps combine projections of excessive heat with socioeconomic indicators strongly associated with increased heat vulnerability, and compares the complex and interconnected components of future heat hazards and existing social vulnerability across U.S. counties.

The maps can be used to discuss climate change impacts on public health with land planners, public health practitioners, medical professionals, and educators. A user can focus on a county of interest and identify key drivers of vulnerability as a starting point for planning and evaluation. The maps can also be used to engage the community and help improve preparedness ahead of heat events in the mid- and long-term.