Agence France Presse: The world’s top 20 polluters gathered here Friday amid hopes that their talks can help break a deadlock and add momentum to negotiations on a successor to the Kyoto Protocol. Former British prime minister Tony Blair, who launched the so-called Group of 20 (G20) initiative on global warming in 2005, was in Japan as the head of a new team of international experts tasked with securing a climate deal. Blair’s team, backed by the United States and Europe, will issue reports on the …