Dec 7, 2015 8:47 AM by Cheryl Wengren
BEIJING (AP) - Beijing has issued its first red alert for smog, urging schools to close and invoking restrictions on factories and traffic that will keep half the city's vehicles off the roads today.
The red alert is the most serious warning on a four-tier system adopted in recent years. It means authorities have forecast more than three consecutive days of severe smog.
The heavy smog isn't expected to improve until Thursday.
It's the second time this month that notoriously polluted Beijing has experienced a prolonged bout of smog. Most of the pollution is blamed on coal-fired power plants, along with vehicle emissions and construction and factory work.
14 hours ago