From communists in situ via Chuang.org
The Furnace
Wuhan is known colloquially as one of the “four furnaces” (四大火炉) of China for its oppressively hot humid summer, shared with Chongqing, Nanjing and alternately Nanchang or Changsha, all bustling cities with long histories along or near the Yangtze river valley. Of the four, Wuhan, however, is also sprinkled with literal furnaces: the massive urban complex acts as a sort of nucleus for the steel, concrete and other construction-related industries of China, its landscape dotted with the slowly-cooling blast furnaces of the remnant state-owned iron and steel foundries, now plagued by overproduction and forced into a contentious new round of downsizing, privatization and general restructuring—itself resulting in several large strikes and protests in the last five years.