Part of my current research has focused on sources of air pollution in the Beijing, Tianjin, Hebei region of China. The region is industrially active and heavily populated, and also serves as a petri dish for Chinese regulators given its outsized role in government and the economy. What other papers or experts are out there that could further our understanding of air pollution in northeast China? What are the primary and secondary drivers of the region’s air pollution and what is being done to try and fix it? What is working and what isn’t? What are some of the novel approaches to correcting air pollution in China?