A lightning show was the brightest part of Sydney's skyline during Earth Hour, which began at 8 p.m. when the lights were turned off at the city's landmarks. Most businesses and homes were already ...

Earth Hour was created by the World Wildlife Fund (WWF) in Sydney in 2007 as a symbolic lights-out event to raise awareness about climate change. Held annually on the last Saturday of March, it ...

Sydney Opera House was one of the world’s most famous landmarks to dim their lights in an act of environmental solidarity. ©ThinkMammoth People around the world dedicated nearly three million hours of ...

Add Yahoo as a preferred source to see more of our stories on Google. The lights on the historic building at the Grand Place were switched off for one hour as part of the international "Earth Hour" ...

Countries across the world participated in Earth Hour on Saturday night, with lights turned off between 8:30 pm and 9:30 pm to support the global event. In India, several iconic landmarks joined in, ...

CHICAGO — From the Sydney Opera House to Rome's Colosseum to the Sears Tower's famous antennas in Chicago, floodlit icons of civilization went dark Saturday for Earth Hour, a worldwide campaign to ...