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/124818" allowfullscreen></iframe> Then-Senator (now secretary of state) John Kerry addresses the U.N. climate conference in Copenhagen, Denmark in December 2009.
