Earth Hour ~ March 31

At 8.30pm local time on Saturday 31 March, Earth Hour 2012 will see hundreds of millions of people around the world cross borders of race, religion, culture, geography and society to unite in a single moment of contemplation for the planet and celebration of their year-round commitment to protect it by switching off their lights for one hour.

Now in its sixth year, the annual lights out event has grown from a single-city initiative in 2007 to become the world’s largest display of environmental action, with citizens of 135 countries and territories across every continent coming together for Earth Hour 2011, indicating a growing global movement of positive change in environmental attitudes.

The iconic ‘lights out’ event has seen some of the world’s most recognized landmarks, including the Forbidden City, Eiffel Tower, Buckingham Palace, Golden Gate Bridge, Table Mountain, Christ the Redeemer statue and Sydney Opera House switch off in a global celebration of the one thing that unites us all – the planet.

See http://www.earthhour.org/.