<P> On October 3, 2009 Tunick performed another installation in collaboration with Greenpeace, this time to draw attention to the effect climate change is having on French wine production . Over 700 volunteers turned up at a vineyard near Macon, France for a number of poses among the vines . </P> <P> On March 1, 2010 Tunick carried out a series of installations titled "The Base" on the Sydney Opera House Forecourt and inside the Opera House . The installations were carried out as part of the Sydney Gay and Lesbian Mardi Gras and were Tunick's first large - scale installation in Sydney, with over 5,200 participants . For the event, the CBC reported that Tunick had invited Lady Gaga to the photo shoot . </P> <P> In May 2010, Tunick was commissioned by The Lowry to work with 1000 people in five secret locations . The resulting exhibition was called Everyday People, tying into a phrase used by L.S. Lowry in describing his art . The press were allowed a photoshoot at Peel Park, Salford on May 1, but the other locations such as Castlefields, Dantzic Street and Ringway remained unreported . </P> <P> On August 8, 2010, around 700 revellers at the Big Chill Festival, at Eastnor Castle Deer Park in Herefordshire UK, shed their clothes and covered themselves in five shades of body paint for an installation that paid homage to the art of Yves Klein, Mark Rothko and Ellsworth Kelly, and made reference to the BP oil spillage in the Gulf of Mexico . </P>

The key component of spencer tunik's installation at zocalo mexico city is