Bloomberg: Climate change envoys inched toward an eventual treaty, narrowing gaps between industrialized and developing nations during two weeks of global-warming talks that conclude today in Bonn. The draft negotiating text limits alternatives from a document published in May. The proposal seeks to limit warming since industrialization began to 2 degrees Celsius (3.6 Fahrenheit) or 1.5 degrees, eliminating a prior option of 1 degree. Options on emissions cuts were also eliminated. The document, …