description: Earth Hour, a WWF-led initiative, in partnership with Leo Burnett and Fairfax Media, began as a single-city climate change campaign to turn off the lights in Sydney, Australia for one hour. In 2009, the global climate change campaign was held in more than 4,088 cities, towns and municipalities, in 88 countries around the world, with over a billion people taking part, making it the largest mass participation event in human history.

category: Case Studies

market category: Government

client: WWF (World Wildlife Fund)

brand/product: Earth Hour

creative director: n/a

copywriter: n/a

pro bono campaign: No