Xinhua: The European Union (EU)'s climate action commissioner Connie Hedegaard on Tuesday called for concerted global action to cut excessive greenhouse gas emissions, after a UN report warned that the world could fail on the goal of containing global warming within two degrees Celsius. According to the annual report released by the UN Environment Program (UNEP) on Tuesday, global greenhouse gas emissions in 2020 will be eight to 12 billion tonnes more than the level needed to hit the 2-degree target. ...