Agence France-Presse: A possible deal on battling global climate change could be reached at a UN summit to be held in Denmark in December, Brazilian President Luiz Inacio Lula da Silva said Monday. "I think we’ll reach an agreement at the Copenhagen meeting in December," he said in his weekly radio program. He said there had been progress towards that goal, with "rich countries now ready to discuss things they wouldn’t discuss before," notably with the United States under President Barack Obama …