UK Prime Minister Tony Blair has told the World Economic Forum a major breakthrough on long-term climate change goals could be close. He told the forum in Davos, Switzerland it was possible because of a "quantum shift" in the attitude of the US. He said the German G8 presidency offered an opportunity for a new international agreement for when the Kyoto Protocol expired in 2012. "I believe we are potentially on the verge of a breakthrough," he said. Mr Blair praised Chancellor Angela Merkel's focus on climate change during her EU presidency and India and China's engagement with the G8.