Leo Burnett has announced that it's London office is going dark this evening (Saturday 23 March) in support of Earth Hour, the global annual environmental event organised by the World Wildlife Fund which encourages people to turn off non-essential lights for one hour.
To encourage other to switch off non-essential lights, the agency has had a back-lit sign in its windows since Monday 18 March, which is only visible at night, saying: “KILL YOUR LIGHTS. EARTH HOUR. 23-03-13.”
Viewable from the very busy West Cromwell Road, the signage is designed to remind people driving into the centre of London of Earth Hour.
AS Earth Hour begins at 8.30pm, the agency will plunge its entire building in Kensington into darkness, switching off all the lights.
The Leo Burnett creatives behind the idea are Ben Gough and Graeme Bowman.