With the continuous advancement of science and technology and the rapid development of economy and culture, for people who have lived in cities for a long time, the brilliant stars and the beautiful Milky Way have long become childhood memories. They no longer dare to expect much; the severe light pollution at night makes it rare for everyone to have the opportunity to appreciate them. Every year, the World Wide Fund for Nature (WWF) calls on people to turn off their lights and power on the last Saturday of March from 20:30 to 21:30. Using one hour of brief darkness to exchange for more green hope for tomorrow, it demonstrates the public’s confidence and determination to work together to protect the ecological environment. This activity happens to return the beautiful starry sky to the city, which coincides with the wishes of many astronomy enthusiasts!
Background:
The activity initially started as a call for Sydney residents to turn off their lights and has gradually grown into one of the world’s largest actions to address climate change. On the night of March 28, 2009, at 8:30 PM, people around the world turned off their lights for “Earth Hour.” We hope that more than 1,000 cities and 1 billion people will participate in this activity, using global efforts to jointly address global warming.
“Earth Hour” was first launched in Australia in 2007, when approximately 2.2 million Sydney households and businesses turned off their lights for one hour. However, just one year later, “Earth Hour” has become a global and continuously developing activity, with up to 5 million people in more than 35 countries participating. Landmarks in major cities around the world, such as the Golden Gate Bridge in San Francisco, the Colosseum in Rome, and the Coca-Cola billboard in Times Square, have stood in darkness for this cause. Residents of various cities have also expressed their enthusiastic hope for the urgent cause of environmental protection.
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