and counting till
Earth Hour!

Earth Hour History

Earth Hour started in Sydney, Australia in 2007. Approximately 2.2 million people and 2,100 businesses took part in the first year.
 Opera House Sydney with Lights off for Earth Hour
In 2008, Earth Hour involved between 50 and 100 million  people  in  370  cities  and  towns  around  the  world,  including  Chicago, Toronto, Copenhagen, Dublin, Atlanta and Bangkok took part.
 
An independent survey found that 58 per cent of people in Australian capital cities joined in by switching off their lights.

In 2009, the concept truly went global, with Earth Hour triggering people to “switch off” all over the world – from the Eiffel Tower in Paris to Times Square in New York. Millions of people in over 4,000 towns and municipalities in 88 countries took part.

2009 was also an important year for the UN climate negotiations. In December 2009, world leaders and climate negotiators gathered at UN climate talks in Copenhagen to agree to a deal to follow the Kyoto Protocol, which Australia ratified in 2007.