Guardian: China and the US were accused of holding back progress on a climate deal today as talks in Tianjin crashed into a series of procedural roadblocks. On the penultimate day, negotiators said they have moved forward on technical issues, including a finance package and the subject of technology transfer, but these advances were largely undermined by procedural manoeuvrings, particularly by the United States and China. The world’s two biggest polluters, which together account for …