6th annual Earth Hour

By HT Correspondent

Updated On Apr 01, 2012 12:49 am IST

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1 / 19

High-rise buildings in the dark during the “Earth Hour” in Gurgaon on Saturday. HT Photo by Parveen Kumar

Updated on Apr 01, 2012 12:49 am IST

High-rise buildings in the dark during the “Earth Hour” in Gurgaon on Saturday. HT Photo by Parveen Kumar

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A view of high-rise buildings before “Earth Hour” in Gurgaon. HT Photo by Parveen Kumar

Updated on Apr 01, 2012 12:49 am IST

A view of high-rise buildings before “Earth Hour” in Gurgaon. HT Photo by Parveen Kumar

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A combination picture shows China's National Stadium (R), also known as the "Bird's Nest", and the National Aquatics Center, also known as the "Water Cube", seen before (top) and after Earth Hour in Beijing. Homes, office towers and landmarks in cities around the world turned off their lights from 8:30 pm local time for one hour to raise awareness about climate change and the threat from rising greenhouse gas emissions. Reuters/David Gray

Updated on Apr 01, 2012 12:49 am IST

A combination picture shows China's National Stadium (R), also known as the "Bird's Nest", and the National Aquatics Center, also known as the "Water Cube", seen before (top) and after Earth Hour in Beijing. Homes, office towers and landmarks in cities around the world turned off their lights from 8:30 pm local time for one hour to raise awareness about climate change and the threat from rising greenhouse gas emissions. Reuters/David Gray

4 / 19

This combination of two photos shows Singapore's famous tourism icon, The Merlion lit with multiple colors, top, and in darkness, below, as part of the city-state's efforts to participate in this year's "Earth Hour", WWF's global initiative to inspire support for actions to combat climate change in Singapore. AP Photo/Wong Maye-E

Updated on Apr 01, 2012 12:49 am IST

This combination of two photos shows Singapore's famous tourism icon, The Merlion lit with multiple colors, top, and in darkness, below, as part of the city-state's efforts to participate in this year's "Earth Hour", WWF's global initiative to inspire support for actions to combat climate change in Singapore. AP Photo/Wong Maye-E

5 / 19

Children wave their LED candles during an event to mark Earth Hour in Kuala Lumpur, Malaysia. Earth Hour takes place worldwide at 8.30 pm local time and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change. AP Photo/Lai Seng Sin

Updated on Apr 01, 2012 12:49 am IST

Children wave their LED candles during an event to mark Earth Hour in Kuala Lumpur, Malaysia. Earth Hour takes place worldwide at 8.30 pm local time and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change. AP Photo/Lai Seng Sin

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The Marina Bay Sands hotel and ArtScience Museum (R) is seen before Earth Hour in Singapore. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Matthew Lee

Updated on Apr 01, 2012 12:49 am IST

The Marina Bay Sands hotel and ArtScience Museum (R) is seen before Earth Hour in Singapore. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Matthew Lee

7 / 19

Malaysia's landmarks Petronas Twin Towers (R) and Kuala Lumpur Tower (L) are seen with the lights off during the Earth Hour in Kuala Lumpur. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo/Mohd Rasfan

Updated on Apr 01, 2012 12:49 am IST

Malaysia's landmarks Petronas Twin Towers (R) and Kuala Lumpur Tower (L) are seen with the lights off during the Earth Hour in Kuala Lumpur. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo/Mohd Rasfan

8 / 19

The Great Wall of China went dark as the landmark switched off the lights to mark 'Earth Hour' as part of a global effort to shine a spotlight on climate change in north of Beijing, China. AP Photo/ Vincent Thian

Updated on Apr 01, 2012 12:49 am IST

The Great Wall of China went dark as the landmark switched off the lights to mark 'Earth Hour' as part of a global effort to shine a spotlight on climate change in north of Beijing, China. AP Photo/ Vincent Thian

9 / 19

Commercial buildings at Hong Kong's central district are seen before switching off nonessential lights at Hong Kong's central district to mark the annual Earth Hour. Earth Hour takes place worldwide at 8.30 pm local time and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change. AP Photo/Kin Cheung

Updated on Apr 01, 2012 12:49 am IST

Commercial buildings at Hong Kong's central district are seen before switching off nonessential lights at Hong Kong's central district to mark the annual Earth Hour. Earth Hour takes place worldwide at 8.30 pm local time and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change. AP Photo/Kin Cheung

10 / 19

University students participate in a mini marathon in conjunction during the earth hour at the Great Wall of China in north of Beijing, China. Hundreds of landmarks around the world including Washington's National Cathedral, London's Clock Tower, the Great Wall of China and Tokyo Tower will be dimmed at 8:30 pm local time, as part of a global effort to shine a spotlight on climate change. AP Photo/ Vincent Thian

Updated on Apr 01, 2012 12:49 am IST

University students participate in a mini marathon in conjunction during the earth hour at the Great Wall of China in north of Beijing, China. Hundreds of landmarks around the world including Washington's National Cathedral, London's Clock Tower, the Great Wall of China and Tokyo Tower will be dimmed at 8:30 pm local time, as part of a global effort to shine a spotlight on climate change. AP Photo/ Vincent Thian

11 / 19

This combo of pictures shows Seoul's landmark the Seoul Tower before (L) and after (R) its lights were turned off for the 6th annual Earth Hour global warming campaign at Seoul. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Kim Jae-Hwan

Updated on Apr 01, 2012 12:49 am IST

This combo of pictures shows Seoul's landmark the Seoul Tower before (L) and after (R) its lights were turned off for the 6th annual Earth Hour global warming campaign at Seoul. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Kim Jae-Hwan

12 / 19

The Sydney skyline is illuminated shortly before the start of the 6th annual Earth Hour. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Torsten Blackwood

Updated on Apr 01, 2012 12:49 am IST

The Sydney skyline is illuminated shortly before the start of the 6th annual Earth Hour. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Torsten Blackwood

13 / 19

A combination picture shows power lines crossing in front of the Sydney Harbour Bridge and city skyline (top) before Earth Hour, and during Earth Hour. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Tim Wimborne

Updated on Apr 01, 2012 12:49 am IST

A combination picture shows power lines crossing in front of the Sydney Harbour Bridge and city skyline (top) before Earth Hour, and during Earth Hour. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Tim Wimborne

14 / 19

A combination picture shows power lines crossing in front of the Sydney city skyline (top) before Earth Hour, and during Earth Hour. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Tim Wimborne

Updated on Apr 01, 2012 12:49 am IST

A combination picture shows power lines crossing in front of the Sydney city skyline (top) before Earth Hour, and during Earth Hour. Earth Hour, when everyone around the world is asked to turn off lights for an hour from 8.30 pm local time, is meant as a show of support for tougher action to confront climate change. Reuters/Tim Wimborne

15 / 19

This combo of pictures shows the Sydney skyline illuminated shortly before the start of the 6th annual Earth Hour (L) and then being darkened. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP PHOTO / Torsten Blackwood

Updated on Apr 01, 2012 12:49 am IST

This combo of pictures shows the Sydney skyline illuminated shortly before the start of the 6th annual Earth Hour (L) and then being darkened. Millions of people were expected to switch off their lights for Earth Hour in a global effort to raise awareness about climate change that was even to be monitored from space. AFP PHOTO / Torsten Blackwood

16 / 19

Chinese actress Li BingBing, left, speaks to the media before a mini marathon in conjunction during the Earth Hour at the Great Wall of China in the north of Beijing, China. Hundreds of landmarks around the world including Washington's National Cathedral, London's Clock Tower, the Great Wall of China and Tokyo Tower will be dimmed at 8:30 pm local time, as part of a global effort to shine a spotlight on climate change. AP Photo/ Vincent Thian

Updated on Apr 01, 2012 12:49 am IST

Chinese actress Li BingBing, left, speaks to the media before a mini marathon in conjunction during the Earth Hour at the Great Wall of China in the north of Beijing, China. Hundreds of landmarks around the world including Washington's National Cathedral, London's Clock Tower, the Great Wall of China and Tokyo Tower will be dimmed at 8:30 pm local time, as part of a global effort to shine a spotlight on climate change. AP Photo/ Vincent Thian

17 / 19

This combo of pictures shows Tokyo's landmark the Tokyo Tower before (top) and after its lights were turned off for the 6th annual Earth Hour global warming campaign in central Tokyo. Millions of people were expected to switch off their lights for Earth Hour on March 31 in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Yoshikazu Tsuno

Updated on Apr 01, 2012 12:49 am IST

This combo of pictures shows Tokyo's landmark the Tokyo Tower before (top) and after its lights were turned off for the 6th annual Earth Hour global warming campaign in central Tokyo. Millions of people were expected to switch off their lights for Earth Hour on March 31 in a global effort to raise awareness about climate change that was even to be monitored from space. AFP Photo / Yoshikazu Tsuno

18 / 19

An illuminated India Gate before observing Earth Hour in New Delhi. HT Photo by Arijit

Updated on Apr 01, 2012 12:49 am IST

An illuminated India Gate before observing Earth Hour in New Delhi. HT Photo by Arijit

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Earth Day celebrated at Gateway Of India and Taj Hotel in Mumbai. HT photo by Anshuman Poyrekar

Updated on Apr 01, 2012 12:49 am IST

Earth Day celebrated at Gateway Of India and Taj Hotel in Mumbai. HT photo by Anshuman Poyrekar

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