Bloomberg: Greenhouse-gas emissions declined 0.1 percent during 2006 in industrialized nations, the United Nations said, showing that many of the world’s biggest polluters are making slow progress in fighting global warming. Germany, Japan and 18 other nations that signed the 1997 Kyoto Protocol treaty that limits emissions aren’t yet on target to meet their obligations of limiting output of carbon dioxide and other global-warming gases, the UN Framework Convention on Climate Change said today …