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Air Conditioning Actually Makes Phoenix Hotter

So much heat is emitted by air conditioning units in Phoenix it actually raises the city's outdoor temperature at night. Continue reading →

June 9, 2014
6:17 PM EDT
This image, created by data from a NASA satellite in 2000, shows the concentration of rooftops and paved surfaces (in blue) in the Phoenix urban area. Vegetation is green and soil is red. | NASA

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