by Jeff Spross Posted on July 14, 2014 Updated: July 14, 2014
Scientists have long been aware of the “urban heat island” effect -- the tendency of large cities to get 1.8 to 5.4°F warmer than surrounding areas in the day, and 22°F warmer at night.
by Joanna M. Foster Posted on June 10, 2014
According to new research, air conditioners that emit waste heat are raising nighttime temperatures in Phoenix by around 2 °F.
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