Brussels, 04/06/2009 (Agence Europe) - On the eve of World Environment Day, on 5 June, European Environment Commissioner Stavros Dimas has launched an urgent appeal to the international community to show greater ambition and diligence in on-going negotiations towards a new post-2012 comprehensive climate agreement. What is at stake is immense: a global agreement in Copenhagen “is the world's last chance to prevent the dangerous, perhaps even catastrophic, levels of climate change that are...