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 ...

According to Burnett figures, the city registered a 10.2 per cent drop in energy used on Saturday night, far exceeding the original target of five per cent. More than 2,000 brands and business also ...

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