![A man lights candles during Earth Hour by the West lake in Hanoi March 27, 2010. Earth Hour, when everyone around the world is asked to turn off lights for an hour A man lights candles during Earth Hour by the West lake in Hanoi March 27, 2010. Earth Hour, when everyone around the world is asked to turn off lights for an hour](https://c8.alamy.com/comp/2D30W88/a-man-lights-candles-during-earth-hour-by-the-west-lake-in-hanoi-march-27-2010-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reuterskham-vietnam-tags-environment-energy-society-2D30W88.jpg)
A man lights candles during Earth Hour by the West lake in Hanoi March 27, 2010. Earth Hour, when everyone around the world is asked to turn off lights for an hour
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Earth Hour 2021: As World Prepares to Turn-Off Its Lights on March 27, We Look Back at Some Past Celebrations (PHOTOS) | The Weather Channel - Articles from The Weather Channel | weather.com
![Students light candles to mark the Earth Hour, inspiring people to take action to protect and preservce the natural environment of the planet, at a pr Stock Photo - Alamy Students light candles to mark the Earth Hour, inspiring people to take action to protect and preservce the natural environment of the planet, at a pr Stock Photo - Alamy](https://c8.alamy.com/comp/W5F011/students-light-candles-to-mark-the-earth-hour-inspiring-people-to-take-action-to-protect-and-preservce-the-natural-environment-of-the-planet-at-a-pr-W5F011.jpg)
Students light candles to mark the Earth Hour, inspiring people to take action to protect and preservce the natural environment of the planet, at a pr Stock Photo - Alamy
![People gather near the arrangement of candles that form the number 60, to represent the minutes … | Las Vegas Review-Journal People gather near the arrangement of candles that form the number 60, to represent the minutes … | Las Vegas Review-Journal](https://www.reviewjournal.com/wp-content/uploads/2019/03/11995916_web1_Bolivia-Earth-Hour.jpg)