How the Sky over the Ruhr Became Blue Again

This essay reflects the long and changeful history of fighting ambient air pollution in the German Ruhrgebiet (Ruhr industrial area) and argues why this success story could actually nurture a more optimistic outlook on China's opportunities to tackle it's massive smog problem.

The essay is written by Dr. Anna L. Ahlers and prepared for the China Center for Comparative Politics and Economics, Central Translation and Compilation Bureau, Beijing.

The full title of the essay is: "How the Sky over the Ruhr Became Blue Again - Or: A German researcher’s optimism about China’s opportunities to tackle the problem of air pollution".

The essay was published in Chinese in "Xiaokang" (Insight China) Journal, No. 23, November 2015. The Chinese version is available here.

The English full-text is available from

Published Nov. 6, 2015 1:19 PM - Last modified Nov. 22, 2017 2:37 PM