Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-weekend-full-episode-december-13-2015 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Sunday on the News Hour... Sunday on NewsHour Weekend: What the Paris climate change deal means for the United States, trying to contain ISIS by attempting to broker peace in Libya, and one American city at the center of the debate over how to treat the homeless. Hari Sreenivasan anchors from New York. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode Medical testing on chimpanzees no longer allowed, the National Institutes of Health says 2 min What does the landmark climate change accord mean for the U.S.? 4 min World powers seek unity government in Libya to deter Islamic State 3 min Debate over how to treat the homeless simmers in Sarasota, as more cities crack down 11 min