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Chicago's orange streetlight glow is disappearing. Is it a good thing? - Curbed Chicago
Like It or Not, Chicago's About to Get a Lot Less Orange – Chicago Magazine
Sodium-vapour Street Lights Photograph by David Nunuk - Pixels
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Chicago's orange streetlight glow is disappearing. Is it a good thing? - Curbed Chicago
Sodium street lights hi-res stock photography and images - Alamy
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Like It or Not, Chicago's About to Get a Lot Less Orange – Chicago Magazine
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