Earth Hour 2018: Landmarks around the world go dark for climate change awareness

India Gate monument in New Delhi, India. (AP Photo/Oinam Anand)

 

From the Sydney Opera House to Paris' Eiffel Tower, landmarks around the world went dark Saturday night for Earth Hour.

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The "symbolic lights-out event," which began in Sydney in 2007, is designed to raise awareness about climate change, according to the World Wildlife Fund.