World leaders gather for Rio Earth summit

World leaders from more than 100 countries are meeting in Brazil for the Rio Plus 20 Earth Summit, the largest United Nations conference ever. Although negotiators have already agreed on a draft document to be approved by world leaders, many groups working on environmental and poverty issues have criticized the draft agreement, saying it is far too weak. The world leaders claim to have the intention being to formulate steps to root out poverty and protect the environment. UN chief Ban Ki-moon has warned that "time is not on our side" to fix a mounting list of problems, and this playlst showcases some of the clips uploaded to YouTube around the World Earth Summit in Rio.