UN News Centre: The top United Nations climate change official said on Saturday that countries have made progress over the past week in defining what could be achieved at the negotiations slated to begin next month in Canc?n, Mexico. “This week has got us closer to a structured set of decisions that can be agreed in Canc?n. Governments addressed what is doable in Canc?n, and what may have to be left to later,” Christiana Figueres said on the final day of the UN Climate Change Conference …