This year’s Virgin Mobile Festival is poised to bring a day of free music to the D.C. metro area. At Saturday’s concert at Merriweather Post Pavilion will be M.I.A., Pavement, Ludacris, Thievery Corporation, LCD Soundsystem, Joan Jett, Matt and Kim, Jimmy Eat World, T.I., Chromeo and more artists on several stages. Instead of taking money, Virgin Mobile FreeFest’s motto is “We’ll take care of the tickets. You take care of the karma.” They are trading tickets for volunteering, taking donations, and have the message on the grounds to “get involved.” Last year, volunteers donated about 30,000 hours and raised $80,000. They turned Merriweather “green.” And they invited nonprofits to educate the public on ways to get involved. That’s where Carbonfund.org comes in. Virgin Mobile FreeFest has invited us to spend the day there talking with concertgoers on how to Reduce Where You Can, Offset What You Can’t. Carbonfund.org will have a booth to hand out information on reducing one’s carbon footprint and offsetting. The festival itself is taking many reduction measures including composting, recycling, biodegradable food service items, running on B99 biodiesel fuel, and, of course, carbon-offsetting. We will see you at the festival! Have an event you would like to offset? Click here.