• A Blue Sky in Beijing? It’s Not a Fluke, Says Greenpeace https://www.nytimes.com/2018/01/11/world/asia/pollution-beijing-declines.html 17 comments 12/1/2018

• Beijing skies blue in 'dramatic' pollution reduction http://www.smh.com.au/world/beijing-skies-blue-in-dramatic-pollution-reduction-20180111-h0gtyb.html 13 comments 11/1/2018 worldnews
• Blue sky vanishes immediately after Beijing's massive parade http://www.cnn.com/2015/09/04/asia/china-beijing-blue-sky-disappears-after-military-parade/index.html 3 comments 4/9/2015 worldnews
• Last of Beijing coal power stations closes as Chinese leaders promise blue skies for all http://www.smh.com.au/world/beijing-closes-last-big-coalfired-power-station-in-push-for-clean-energy-20170320-gv20hx 539 comments 21/3/2017 worldnews
• Beijing may soon see blue skies on Saturday as cold front moves in to disperse pollution http://news.xinhuanet.com/english/2015-12/25/c_134952974.htm 15 comments 26/12/2015 worldnews