You’ve probably seen this on the news, but just in case… Al Gore et. al have announced Live Earth:

SOS is designed to trigger a global movement to combat our climate crisis. It will reach people in every corner of the planet through television, film, radio, the Internet and Live Earth, a 24-hour concert on 7/7/07 across all 7 continents that will bring together more than 100 of the world’s top musical acts.

Sydney is the Australian city that will be hosting the event. There’s even suggestion that there will be a concert in Antarctica!

The press release has more details, including a list of artists who have been confirmed for the date.