March 29 is Earth Hour Day, and cities and businesses around the world will be “lights out” for one hour in order to raise awareness about global climate change. If you’ve done a Google search this afternoon, you’ll notice that the screen is “blacked out” in honor of Earth Hour. I wrote about Earth Hour earlier in the month - but today is the day! - so here is the update reposted below as a reminder to do your part, and turn off your lights between 8pm and 9pm this evening.

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Google and Earth Hour are working together to encourage cities and businesses around the world to power down for one hour in order to raise awareness about global climate change. Structures like the Golden Gate Bridge and the Sears Tower, as well as thousands of businesses and individual homes, will be in total darkness as a part of Earth Hour’s mission to show coordinated global action for climate change solutions.

“If we see the same participation levels around the globe that we did in Sydney, then we can anticipate more than 30 million people involved,” said Andy Ridley, Earth Hour’s executive director.

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