A woman takes picture of image of Guanabara Bay made of recycled trash, by Brazilian plastic artist Muniz,...
A woman takes a picture of an image of Guanabara Bay made of recycled trash, part of an installation by Brazilian plastic artist Vik Muniz, during the Rio+20 United Nations Conference on Sustainable Development summit in Rio de Janeiro June 22, 2012. REUTERS/Nacho Doce (BRAZIL - Tags: ENVIRONMENT SOCIETY)