Since China launched its "action on air pollution" local governments have been shutting down smaller outdated steel plants.
By Lauri Myllyvirta, Unearthed
Earlier this month and without much comment, dozens of huge steel mills in China stopped or curtailed their operations. In northern China cement plants are preparing to shut down entirely before Christmas.
The measures are a part of an aggressive action plan that aims to cut wintertime particulate pollution by 15 percent year-on-year over the next five months. These cuts are badly needed as Beijing and the surrounding industrial provinces have suffered the winter's first serious episode this week, with PM2.5 levels across several provinces reaching "very unhealthy" levels.