Summer temperature variability may increase mortality risk for elderly with chronic disease Full Text
The effect of temperature patterns on long–term mortality has not been clear to this point. We found that, independent of heat waves, high day to day variability in summer temperatures shortens life expectancy. In recent years, scientists have predicted that climate change will not only increase overall world temperatures but will also increase summer temperature variability, particularly in mid–latitude regions such as the mid–Atlantic states of the U.S. and sections of countries such as France, Spain, and Italy. They found that, within each city, years when the summer temperature swings were larger had higher death rates than years with smaller swings.