Parts of Charlotte's skyline will go dark Saturday night as the city joins 2,100 others in a global statement for action on climate change.
Sponsored by the World Wildlife Fund, Earth Hour (www.earthhourus .org) began in Sydney, Australia, in 2007 with 2 million people taking part. This year's goal: 1 billion.
Places darkened include New York City's Empire State Building, the Las Vegas Strip, and San Francisco's Golden Gate Bridge.
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