The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to blame for ...

TUCSON, Ariz. (13 News) - The State Funeral for Former President Jimmy Carter continues today. A ceremony is being held at the Carter Center in Atlanta, Georgia as his coffin leaves one final time.