It is understood that Earth Hour is a global energy-saving event that advocates that on the last Saturday in March every year at 20:30 local time, households and business users turn off unnecessary lights and power-consuming products. Hour. The event was originally launched by the environmental group WWF Australia and the Sydney Morning Herald, and the first event was held on March 31, 2007, local time in Sydney, Australia, from 8:30 to 9:30 pm. This campaign promotes power management, reduces energy consumption, and arouses people's awareness of taking practical actions to combat global warming. In 2008, the event was promoted to all parts of the world, with nearly 380 towns and cities in more than 40 cities around the world carrying out the event.

Purpose of the festival

The goal of "Earth Hour" is to involve as many individuals, families and businesses as possible by turning off lights and other electrical appliances for an hour (except for necessary transportation and other necessary Lighting, such as computer monitors, televisions, etc.), its main goal is not to save energy, but to curb climate warming.

"Earth Hour" aims to make the global community aware of the threats posed by climate change, and to make them aware that small actions by individuals and businesses will have a negative impact on the environment they live in. What a profound impact – small changes can have a huge impact.

At the same time, the "Earth Hour" event also provides a global environmental change for the leaders attending the United Nations climate change negotiations held in Copenhagen in December 2009, hoping that the heads of state will reach a new global Climate change agreement, replacing the Kyoto Protocol.

The "Earth Hour" event was first launched in Sydney, Australia at 8:30 pm on March 31, 2007. That night, more than 2.2 million households and businesses in Sydney turned off their lights and electrical appliances. Hour. Afterwards, statistics showed that the electricity saved by turning off the lights for one hour was enough to run 200,000 televisions for one hour and run 50,000 cars for one hour. More participating citizens reported that they could see several times more stars that night than usual.

Subsequently, "Earth Hour" started from this limited scale and quickly swept the world at an astonishing speed. Just one year later, Earth Hour has been recognized as one of the world's largest actions to combat climate change, becoming a global and continuing event.