Earth Hour Tonight: At 8:30 (20:30) local, lights out to stop global warming #earthhour

Tonight, it's lights-out around the world in support of sustainability, and getting a strong global treaty to slow and stop climate change.

Earth Hour is being organized by the international non-profit WWF (stands for World Wildlife Fund, not World Wrestling Federation), which hopes that one billion people in more than 1,000 cities will turn out their lights for an hour this evening -- creating a wave of evening darkness around the globe. "Two years ago, Earth Hour began in one city, in one country, when more than 2.2 million households and businesses in Sydney turned off their lights for one hour," according to a WWF statement. a statement from Julia Marton-Lefèvre, Director General of the International Union for the Conservation of Nature (IUCN), which is helping promote the action. "Last year, Earth Hour reached 370 cities and towns in more than 35 countries across 18 time zones."

Social media-making should give everyone a sense of the global groundswell:

• Photos are already appearing on the Earth Hour flickr group.
• Here's a link to the flicker RSS feed.
• Twitter's already a-tweeting as people around the world share their experiences, with the tags #earthhour and #voteearth.
• Folks are also being asked to write a live blog post during the event and tag it with #earthhour or #voteearth, and your #location.

See you in the dark!