A polar bear stands on floating sea ice in the Arctic. The bears rely on sea ice to move throughout their hunting grounds.

As the Arctic ice retreats, scientists warn of a pivotal moment approaching. Could the first ice-free day be just around the corner?

The first ice-free day in the Arctic could happen within three years, according to a new study. The research team used computer models to predict when the first ice-free day could happen in the northernmost ocean.

BALTIMORE -- Another blast of Arctic air is set to arrive, closing out the workweek with wintry conditions. After a sunny and cool afternoon, skies will become mostly cloudy tonight. As a result, overnight temperatures will not be as chilly as recent nights, with lows dipping into the mid-30s.

The cold air that has plagued the region for the past several days will persist through the rest of the week. In fact, temperatures are set to drop further as an arctic front is expected to track into the area Thursday morning,