Coachella with its great 2009 lineup is scheduled for April 17, 18 and 19th.  3-day passes are $269 and single day passes $99.   To reduce the environmental impact of this event Coachella encourges you to use PickupPal to arrange a carpool or donate seats in your car.  Also, they provide recycling via their 10 for 1 program where attendees receive a free bottle of water for every 10 they bring to recycle.  They are teaming up with Global Inheritance for this service and Coachella will have their TRASHed recycling program again this year.