To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/52749" allowfullscreen></iframe> CBS correspondent Daniel Sieberg touts the efforts of a 15-year-old global warming activist who claims that major cities will be underwater due to melting glaciers.
