On Tuesday, China's capital felt the effects of the new restrictions around its air pollution red alert.
The red alert — the most serious warning on a four-tier system — is the first time the country has sounded the alarm for air...
On Tuesday, China's capital felt the effects of the new restrictions around its air pollution red alert.
The red alert — the most serious warning on a four-tier system — is the first time the country has sounded the alarm for air...