Add Yahoo as a preferred source to see more of our stories on Google. A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar vortex ...

The world's largest iceberg, A23a, is stuck again. For more than 30 years, the giant frozen block — equivalent to the size of Rhode Island — was grounded on the sea floor in Antarctic coastal waters.

The biggest iceberg in the world has become trapped, traveling in a gigantic circle, and may be stuck there for years. The iceberg, named A23a, is about 1,640 square miles in area, slightly larger ...

The sudden blast may have come as a shock to many Americans after a mostly mild start to winter, but that warmth may have partly contributed to the ferocity of the storm. As atmospheric and climate ...