National A/C bill high this summer? Cool innovations promise more efficient air conditioning 5:04pm July 28, 2023 Energy Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2023 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered World News National Former Brazilian president indicted over alleged coup plot Education National This year's FAFSA is officially open. Early review says it's 'a piece of cake' 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate