Business Green: Yvo de Boer, the UN’s top climate change official, has today closed the latest round of talks in Bonn with the stark warning that a deal will not be reached at the Copenhagen meeting this December unless the pace of negotiations increases significantly. Speaking at a press conference following the week-long talks, de Boer said that while some progress had been made to consolidate the 200-page negotiating text, "if we continue at this rate, we’re not going to make it". Appearing …