OneWorld U.S.: The United Nations is facing scathing criticism from the world’s indigenous communities for its attempts to promote carbon trading as a tool to address climate change concerns. “The UN is allowing companies who are the biggest emitters of greenhouse gases to continue to pollute,” said Tom Goldtooth of the U.S.-based Indigenous Environment Network (IEN). Last week, at the end of a two-week international gathering, a UN body said the World Bank funding for carbon …