National Public Radio: High-level U.N. climate talks opened in Bali Wednesday with pleas for quick action to tackle global warming. The hero of the day was Australia’s new prime minister, Kevin Rudd, who signed his country on to the Kyoto treaty. By contrast, the United States was the subject of quiet scorn. Rudd told the assembled dignitaries that when he became prime minister last week, his first official act was to sign the documents committing his nation to the Kyoto Protocol, reversing the …