Earth Hour 2019: Global citizens asked to power down for an hour on March 30

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Saturday, March 30, 2019

People around the world are being asked to turn off the lights for one hour on Saturday.

It's part of Earth Hour, an event that encourages participation in fighting climate change.

The World Wildlife Fund says Earth Hour is not a one-hour commitment to conservation but rather a symbol of something bigger.

"Participation in Earth Hour symbolizes a commitment to change beyond the hour," the website reads.

The initiative is supported by 7,000 cities around the world. Landmarks will go dark, and millions of people are expected to turn off their lights.

Earth Hour takes place at 8:30 p.m. - 9:30 p.m. local time.