Earth Hour is a worldwide movement for the planet encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m., as a symbol for their commitment to the planet. It was famously started as a lights-off event in Sydney, Australia in 2007. Since then it has grown to engage more than 7000 cities and towns worldwide. Today, Earth Hour engages a massive mainstream community on a broad range of environmental issues. The one-hour event continues to remain the key driver of the now larger movement.
To celebrate, you can have a candle lit dinner, talk to your neighbors, stargaze, go camping, play board games, have a concert, screen an environmental documentary post the hour, create or join a community event - the possibilities are endless.
Get more information about Earth Hour, including events in your area, at http://www.earthhour.org/