Centers for Disease Control and Prevention, Climate Health Program

San Francisco at sunset. Double L -Taraval, by David Yu. Used via Creative Commons License, CC BY-NC 2.0 DEED, via Flickr.

Self-service collard patch near Carthage, North Carolina. Image credit: Donald Lee Pardue. CC BY 2.0 (https://creativecommons.org/licenses/by/2.0/), via Flickr