Hundreds of Cities Go Dark For Earth Hour - KSWO 7News | Breaking News, Weather and Sports

Hundreds of Cities Go Dark For Earth Hour

LAS VEGAS, Nevada_Hundreds of world landmarks turned out the lights for one hour Saturday night.

From the Las Vegas Strip to the Eiffel Tower and The Great Wall of China, cities all over the world turned off their lights at 8:30 PM local time, as part of a global effort to highlight climate change.  

Hosted by the World Wildlife Fund, Earth Hour began as a Sydney-only event in 2007.

The city's iconic Harbor Bridge and Opera House were dimmed again this year.

The event has swelled from two million participants in 2007 to an estimated one point eight billion in 2012.  

At the Bird's Nest, a Beijing Landmark and centerpiece of the 2008 Olympics, lights went off as China joined more than 150 countries and territories for the Earth Hour global initiative.


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