Inter Press Service: A new financial mechanism to help the developing world deal with the challenges posed by climate change looms as a major hurdle on the road leading up to a United Nations summit in Copenhagen in mid-December. Negotiators from the developing world and the developed world have only five days of climate talks in Barcelona, Spain from Nov. 2 to 6 to bridge stark differences that have emerged between the developed and developing nations before they head to the Danish capital for the …