S.F. Health Department Releases Heat Vulnerability Index

Last week, the San Francisco Department of Public Health released a Heat Vulnerability Index designed to highlight areas of the city that are most at risk during an extreme heat event. City officials say that the data could be used to reduce the number of heat-related illnesses -- such as heat stroke -- and heat-related deaths.

• "San Francisco Health Department Unveils Health Vulnerability Index" (Yoshida, Government Technology, 9/16).