October 15, 2016 8:43 am World Delegates Celebrate Historic Climate Deal World delegates celebrated in Rwanda Saturday morning after reaching a deal to limit the use of greenhouse gases far more powerful than carbon dioxide in a major effort to fight climate change. US & World Videos 1:35 Understanding the Biden administration's plans to reclassify marijuana 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 2:28 King Charles returns to public duties amid cancer diagnosis