Climate Effects on Health

The information on health effects has been excerpted from the Third National Climate Assessment’s Health ChapterExternal. Additional information regarding the health effects of climate change and references to supporting literature can be found in the Health Chapter at

Climate change, together with other natural and human-made health stressors, influences human health and disease in numerous ways. Some existing health threats will intensify and new health threats will emerge. Not everyone is equally at risk. Important considerations include age, economic resources, and location.

In the U.S., public health can be affected by disruptions of physical, biological, and ecological systems, including disturbances originating here and elsewhere. The health effects of these disruptions include increased respiratory and cardiovascular disease, injuries and premature deaths related to extreme weather events, changes in the prevalence and geographical distribution of food- and water-borne illnesses and other infectious diseases, and threats to mental health.

CDC and APHA Fact Sheets


Climate change health effects wheel graphic

Animated PowerPoint versions in English Cdc-ppt[4.05 MB] and Spanish Cdc-ppt[1.71 MB]


Page last reviewed: December 22, 2014