Temperatures in the Midwest plunged below those at the South Pole Wednesday, falling as far as negative 40 degrees Fahrenheit, even before accounting for windchill. As a result of the frigid conditions, hundreds of schools and businesses are closed, and…

More than a quarter of the U.S. population is expected to deal with sub-zero temperatures this week. The extreme cold has sparked some public skepticism over global warming, but scientists actually believe it is a consequence of climate change. Amna…

Much of the American Midwest is experiencing a deep freeze that will bring with it the lowest temperatures seen in a generation. Arctic air and icy conditions led schools to close, flights to be canceled and railway officials to set…

In our news wrap Friday, Washington, New York, Trenton and Baltimore all broke temperature records during a burst of arctic air that wreaked havoc by freezing pipes. Also, about 800,000 people who use HealthCare.gov received the wrong tax information from…

By PBS NewsHour