Saturday night in Sydney Australia was noticeably darker as homes and businesses and even the famed Opera House and Harbour Bridge turned off their lights for one hour.
They were taking part in Earth Hour. It's a global
climate-change awareness event today in hundreds of cities in more
than 35 nations around the world. All are pledged to turn out the
lights for one hour, starting at 8 p.m. local time.
Organizers see Earth Hour as a way to encourage the world to
In Sydney, people embraced the idea with candlelight dinners,
beach bonfires and even a green-powered outdoor movie.
One of the last major cities to participate tonight will be San
Francisco, home to the Golden Gate Bridge, which will be going
Earth Hour debuted last year in Sydney with some two million
people and 2,000 business taking part. Organizers say it cut the
city's greenhouse gas emissions for the hour by more than 10
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