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/124335" allowfullscreen></iframe> EPA Chief: 'No More Urgent Threat to Public Health Than Climate Change'- See more at: http://cnsnews.com/news/article/susan-jones/epa-chief-no-more-urgent-threat-public-health-climate-change#sthash.hQHBkGjq.dpuf