Concerns are growing among experts who believe that rising sea levels brought about by climate change will pose an increasing threat to the US coastline, and the millions of people who live along it. CGTN's Phil Lavelle has more. Subscribe to us on YouTube: goo.gl/lP12gA Watch CGTN Live: www.youtube.com/watch?v=L2-Aq7f_BwE Download our APP on Apple Store (iOS): itunes.apple.com/us/app/cctvnews-app/id922456579?l=zh&ls=1&mt=8 Download our APP on Google Play (Android): play.google.com/store/apps/details?id=com.imib.cctv Follow us on: Facebook: www.facebook.com/ChinaGlobalTVNetwork/ Instagram: www.instagram.com/cgtn/?hl=zh-cn Twitter: twitter.com/CGTNOfficial Pinterest: www.pinterest.com/CGTNOfficial/ Tumblr: cctvnews.tumblr.com/ Weibo: weibo.com/cctvnewsbeijing