The week's best photos

Boys of the Paresi tribe helps each dress in traditional wear at the Kari-Oca village, during the United Nations Conference on Sustainable Development, or Rio+20, in Rio de Janeiro, Brazil, Wednesday, June 13, 2012. The Rio+20 conference is expected to draw some 50,000 participants including delegates, environmental activists, business leaders and indigenous groups. The event runs through June 22, with three final days of high-profile talks among some 130 top leaders from nations around the globe. (AP Photo/Felipe Dana)