Paris climate summit: Beijing issues highest-level smog alert - COP21

Subscribe to France 24 now: http://f24.my/youtubeEN FRANCE 24 live news stream: all the latest news 24/7 http://f24.my/YTliveEN It is probably the best time for Chinese authorities to be talking about climate change: a very dense and polluted smog envelopes China's capital city, Beijing. According to our correspondent Tracy Chang, the visibility is extremely low and pollution is sky-high. Visit our website: http://www.france24.com Like us on Facebook:   / france24.english   Follow us on Twitter:   / france24_en