Last week, much of northern China was cloaked in a thick apocalyptic smog which many scientists likened to a nuclear winter.
Although pollution levels in Beijing have now subsided to “very unhealthy” from “hazardous,” president Xi Jinping cited it as the biggest challenge facing the capital.
Last Tuesday, the concentration of the noxious PM 2.5 pollutant breached the 500 micrograms per cubic meter mark.
That’s 20 times higher than the level recommended by the World Health Organization.
Source: Huffington Post Green