to turn off the lights and non-essential electrical appliances for one hour on the evening of 29 March from 8PM until 9 PM [local time].

Originally Earth Hour launched in Australia, widely supported by Australian people.

How it works in Sydney,

even google.com is turning off their lights.

So, what about

you

?

P.S. You can call it as Flash mob or even tokenism, but since Australians were able to reach >5% reduce, so we can.