7m 25sLenght

With 7 million people and 8,000 skyscrapers, Hong Kong is one of the most congested cities in the world, with barely any place for agriculture. But some residents have found spaces to plant, grow, and harvest food in the midst of the urban jungle: on top of buildings. Experts say "vertical farming" would not only improve Hong Kong's food supply and give residents access to organic food, but also make the city greener. Li Jiejun reports Subscribe to us on Youtube: https://www.youtube.com/user/CCTVNEWSbeijing Download for IOS: https://itunes.apple.com/us/app/cctvnews-app/id922456579?l=zh&ls=1&mt=8 Download for Android: https://play.google.com/store/apps/details?id=com.imib.cctv Follow us on: Facebook: https://www.facebook.com/cctvnewschina Twitter: https://twitter.com/CCTVNEWS Google+: https://plus.google.com/+CCTVNEWSbeijing Tumblr: http://cctvnews.tumblr.com/ Weibo: http://weibo.com/cctvnewsbeijing