Question

Earth hour started from -------------------------​

Answer 1

Answer:

This year, we invite you to spread the same message and re-create the same unmissable sight online by taking part in our first-ever Earth Hour Virtual Spotlight," reads WWF website. The first Earth Hour was held in Sydney in 2007. WWF had encouraged 2.2 million people to turn off their lights for one hour.

Answer 2

Answer:

The first Earth Hour was held in Sydney in 2007. WWF had encouraged 2.2 million people to turn off their lights for one hour.