U.S. climate envoy John Kerry is tempering expectations for a U.N. climate summit sometimes billed as make-or-break for the Earth’s future, conceding next month’s talks likely will end with nations still short of the target of cuts in coal and petroleum emissions that are needed to stave off increasingly devastating levels of global warming. But in an interview with The Associated Press, Kerry also credited efforts by the United States, European Union, Japan and other allies ahead of next month’s climate negotiations in Glasgow, Scotland with getting the world much closer to the scale of big, fast fossil fuel cuts needed. He expressed hope enough nations would join in over the next couple of years. […]