The Guardian of London reports the United Nations and the European Union are piling pressure on the United States to set more ambitious targets and timetables to cut greenhouse emissions in order to reach a deal at Copenhagen. With just five days of formal negotiations left before the start of the crucial UN climate talks in Copenhagen next month, key figures in the negotiations are showing clear signs of impatience at the US position. Swedish environment minister Andreas Carlgren said, “We expect American leadership. President Obama has created great expectations around the world. Now we urge [the US] to contribute in the way that we have.”