Herald: European officials turned up the heat on the United States last night in an attempt to secure an ambitious road map for a new international climate change deal. As the UN climate change conference in Bali entered its final hours, ministers were trying to engineer the route to negotiations on an agreement to cut global emissions, replacing the Kyoto Protocol when it expires in 2012. The aim is to secure the road map’s mention of a target of 25% to 40% emissions cuts for …