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Earth Hour Chicago

Earth Hour Electricity: Illinois Use Drops 1 Percent During Event

AP | Posted 05.25.2011 | Chicago

CHICAGO (AP) -- Commonwealth Edison says electricity use by northern Illinois customers dropped by 1 percent as people in buildings and homes dimmed t...

Cities Black Out For Earth Hour

AP | CARYN ROUSSEAU | Posted 11.17.2011 | Healthy Living

CHICAGO — From the Sydney Opera House to Rome's Colosseum to the Sears Tower's famous antennas in Chicago, floodlit icons of civilization went d...