AdvertisementWatch: President Obama Delivers Remarks At U.N. Climate Change ConventionUpdated November 30, 2015WBUR NewsroomfacebookEmail STORY: Some 150 World Leaders Gather In Paris For U.N. Climate Conference MORE: 10 Things To Know About The U.N. Climate Talks In ParisThis article was originally published on November 30, 2015.Paris Climate Talkspolicy