July 19, 2019 7:35 pm What is the Ozone and How Does Climate Change Threaten It? NBC 7’s Dagmar Midcap explains the role of the Ozone layer and how climate change is making it harder for it to do its job. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks