Spiegel: Yvo de Boer, the UN’s climate chief, is facing an uphill task at Poznan. The world needs a new treaty on global warming to replace the Kyoto Protocol but many nations are now far more worried about the economic crisis. The prospects of reaching a deal by next year in Copenhagen are already looking slim. If the carbon dioxide emissions of countries were reflected in the abdominal girth of their populations, Yvo de Boer’s work would be much easier. The waistlines of the Indians …