The Glastonbury Festival in England is the largest greenfield music and performing arts festival in the world, and it has a trash pile to prove it. Every year the festival employs a team of 1,200 volunteers who work for four, six-hour shifts to earn a festival ticket. They sort up to 2,000 tons of rubbish generated by the festival's 137,000 participants. The clean-up and recycling effort lasts for more than a month after the event.