Global
Around the world, over 4,000 cities and towns in 88 countries, across 25 time zones, involving hundreds of millions of people turned off their lights for an hour on 28 March 2009 in what has been billed "a vote for the earth". These votes were presented to the world leaders at the Global Climate Change Conference in Copenhagen in December 2009 to make sure that the global voice is heard.

Earth Hour 2009 witnessed the lights went out on some of the most recognized landmarks on the planet, including Christ the Redeemer in Rio de Janeiro, the Bird's Nest and the Water Cube in Beijing, Eiffel Tower in Paris and Big Ben in London, and the world’s tallest constructed building Taipei 101.

Hong Kong
About 2.9 million people in Hong Kong participated in Earth Hour 2009, joining the 1 billion voices from around the world in this call for action on climate change. At 8:30pm on 28 March 2009, the Victoria Harbor went dark, over 1,800 buildings, 600 companies and organisations, all 18 district councils, 160 schools and all universities switched off their lights for a brighter future.

Earth Hour is not only about lights off in one hour. 99% of the participants said they would also take actions in their daily lives to save energy and reduce carbon footprint in the future.

Besides switching off all nonessential lighting in their homes and workplaces, have you wondered what companies, schools, individuals and our celebrities did to support Earth Hour 2009?

• Corporate Supporters
• Supporting Schools
• Individual supporters
• Celebrities