Climate activists protest acting in the role world leaders who search for a way , in front of the U.N. climate change conference at the National Stadium in Warsaw, Poland on Friday, Nov. 22, 2013. They act as : French President Francois Hollande, Japan’s Prime Minister Shinzo Abe, U.S. President Barack Obama and German Chancellor Angela Merkel., from left to right. (AP Photo/Czarek Sokolowski)WARSAW, Poland (AP) — U.N. climate talks ran into extra time Friday with greater than one hundred ninety countries arguing over the constructing blocks for a new percent to sluggish international warming.