Despite frigid weather, Mongolians protest worsening smog

Hundreds of Mongolians braved frigid weather Monday to stage a protest in the country's capital demanding that the government do more to address worsening air pollution that they fear is sickening their children and shortening ...

Arctic air brings record cold to huge swath of US

A blast of bone-chilling cold reaching lows not seen in two decades gripped the United States early Tuesday, snarling air travel, closing schools and prompting calls for people to stay inside.