A candle mural depicting the World Wildlife Fund panda and the Earth Hour logo is lit on the forecourt of the Sydney Opera House as the lights are switched off for Earth Hour on March 31 in Sydney, Australia.

Photo: Marianna Massey/Getty Images for WWF Australia

Lights out for the Earth

A mural of candles depicting the World Wildlife Fund panda and the Earth Hour logo is lit on March 31 in the foreground of the Sydney Opera House as the lights are switched off for Earth Hour in Australia.

 

Landmarks around the globe turned off their lights for 60 minutes during Earth Hour, an annual environmental event organized to send a message for global action on climate change.

 


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In this composite image, the entrance to Luna Park Sydney is seen before and after the lights are switched off for Earth Hour on March 31 in Sydney, Australia.

Photo: Lisa Maree Williams/Getty Images

Sydney's Luna Park goes dark

In this composite image, the entrance to Luna Park Sydney is seen before and after the lights are switched off for Earth Hour in Sydney.
 

The annual eco-event kicked off for the first time in 2007 when more than 2.2 million residents of Sydney turned off their lights in a call to action conceived by the World Wildlife Fund and the Sydney Morning Herald.


 


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Panda figurines by the World Wildlife fund are placed in front of the Eiffel Tower, which is seen before and after the start of Earth in this composite photo taken in the evening of March 31 in Paris.

Photo: Antoine Antoniol/Getty Images

The City of Light dims down

WWF panda figurines are placed in front of the Eiffel Tower, which is seen before and after the start of Earth Hour in this composite photo taken in the evening of March 31 in Paris.

 

Since its humble beginnings, Earth Hour has grown larger each year, and as of 2012, the event is observed in homes, skyscrapers, government buildings and public landmarks in more than 5,000 cities in 147 countries across the globe.

 


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The Octavio Frias de Oliveira bridge, which straddles the Pinheiros River in São Paulo, Brazil, is seen in this composite image with its lights on and its lights off during Earth Hour on March 31.

Photo: Yasuyoshi Chiba/AFP/Getty Images

São Paulo opts for a low power hour

The Octavio Frias de Oliveira bridge, which straddles the Pinheiros River in São Paulo, Brazil, is seen in this composite image with its lights on and its lights off during Earth Hour on March 31.

 


Read more here: http://www.miamiherald.com/2012/03/12/2689553/miami-seaquarium-releases-to-recovered.html#storylink=cpy
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