A shade map [1] produced by the University of California, Los Angeles, and American Forests reveals a critical shade shortage in the United States. This map, covering more than 360 cities and towns, highlights where shade [2] from buildings and vegetation is present. City planners can use the interactive tool to strategically place shade trees to mitigate rising temperatures. A 2020 study published in GeoHealth found that extreme heat contributes to 12,000 premature deaths annually in the U.S., a number that could rise to 50,000 under moderate warming scenarios.

The map illustrates how investments in shade may impact temperatures at noon, 3 p.m. and 6 p.m. in specific locations. Trees deliver 25 times more shade than buildings at noon, demonstrating their effectiveness in reducing extreme heat. The map’s creators also offer real-world examples of the benefits of shade coverage, such as on school routes in Austin, Texas, public transit stops in Detroit, Michigan, and public parks in Phoenix, Arizona.