Earth Hour .. 27 March 2010

Earth Hour is a global event organized by WWF (World Wide Fund for Nature, also known as World Wildlife Fund) and is held on the last Saturday of March annually, asking households and businesses to turn off their non-essential lights and other electrical appliances for one hour to raise awareness towards the need to take action on climate change. Earth hour was conceived by WWF and The Sydney Morning Herald in 2007, when 2.2 million residents of Sydney participated by turning off all non-essential lights. Following Sydney's lead, many other cities around the world adopted the event in 2008. Earth Hour 2010 will take place on March 27, 2010 from 8:30 p.m. to 9:30 p.m., local time.

Earth Hour 2010 will be held from 8:30 p.m. to 9:30 p.m. local time, March 27.
Earth Hour 2010 will continue to be a global call to action to every individual, every business and every community. A call to stand up, to show leadership and be responsible for our future.

Earth Hour 2010 is reportedly on track to become the largest Earth Hour yet, aiming to garner more than the one billion participant goal of 2009's Earth Hour. 121 countries have signed up for Earth Hour 2010.
A list of 812 icons and landmarks worldwide will turn off their lights for Earth Hour, including:

• Eiffel Tower, Paris
• Grand Palace, Bangkok
• Sky Tower, Auckland
• London Eye, London
• Piccadilly Circus, London
• Brandenburg Gate, Berlin
• Empire State Building, New York
• Burj Al Arab, Dubai
• Christ the Redeemer, Rio de Janeiro
• El Ángel, Mexico City
• Trevi Fountain, Italy
• Willis Tower, Chicago
• Victoria Falls, Zimbabwe
• Forbidden City, Beijing
• Red Fort, Delhi
• Leaning Tower of Pisa, Pisa
• Big Ben, London
• Sydney Opera House, Sydney
• Space Needle, Seattle
• Pyramids of Giza, Cairo
• Niagara Falls, Niagara Falls
• Gateway Arch, St. Louis
• Welcome to Fabulous Las Vegas Sign, Las Vegas

These three combo photos show Malaysia's landmark the Petronas Twin Towers in downtown Kuala Lumpur, Malaysia, having their lights turned off (from top to lower ground) to mark Earth Hour on March 28, 2009.