Agence France-Presse: More than 140 countries agreed Friday to launch negotiations establishing a treaty on mercury to limit pollution affecting millions of people across the world, the UN environment body said. They also agreed an interim plan to curb pollution while awaiting the treaty because “the risk to human health was so significant that accelerated action… is needed,” the United Nations Environment Programme (UNEP) said in a statement. “Today we are united on the need for a legally binding …