"This documentary went viral in China. Then it was censored. It won’t be forgotten", 16 Mar 2015

...Made by a well-known China Central Television newscaster Chai Jing, the film drew more than 150 million viewers in the first days after Chai posted it online...her documentary goes on to take a tough and sophisticated look at self-interested state-owned coal and oil companies, impotent environmental regulators, and ineffective national legislation...She consults scientists and explains why small particles emitted by the nation’s booming number of automobiles are particularly lethal...In China, the problem isn’t an absence of regulatory structure, it’s the wholesale failure of that structure, in which Chinese industry, much of it state-owned, disregards regulations, sets its own standards, or manages to play off different parts of the bureaucracy against one another...Self-regulating oil refiners produce diesel with high sulfur content. Steel manufacturers lack pollution controls while many coal-fired power plants turn off scrubbers that reduce soot and acid rain because the scrubbers use a little bit of power that could otherwise be sold...