Key Points

• A heat wave is a period of high temperatures that can cause illness and death.

• Climate change is predicted to make heat waves longer, occur more frequently,
   and be more intense.

• Infants, seniors, people with heart or lung problems, and people who are economically disadvantaged, live in
   substandard housing, or do not have access to air conditioning are especially vulnerable to heat waves.

• People living in cities often experience more heat-related illness than people in
   rural areas because of the high-rises, older multi-family dwellings, and urban
   heat islands common in cities.

• Some communities are conducting heat vulnerability assessments to identify areas where residents who may be at risk during a
   heat wave and setting up heat alert and response systems.