Leo Burnett Sydney 'earth hour' by Leo Burnett

Leo Burnett Sydney 'earth hour' by Leo Burnett
Leo Burnett Sydney 'earth hour' by Leo Burnett

Leo Burnett Sydney has produced the latest Earth Hour film which goes global today.

The ad promotes tomorrow's WWF-organised Earth Hour, during which people are being encouraged to turn out their lights for an hour to highlight the global warming issue.