arctic

• Official

Winter Storm Moving through the Southwest U.S.; Arctic Front to Bring Gusty Winds and Snow Squalls in the Northeast U.S.

• Official

Winter Storm for Mid-Atlantic and Northeast; Arctic Air Spreads South and East into Next Week

• Official

Arctic Air Spreads South and East from Rockies Friday through Next Week

• Official

Arctic tundra becoming source of carbon dioxide emissions

Transcript Intro 0:00 [Music] Changing ecosystem 0:06 The Arctic is an ecosystem in transition, 0:09 and adaptation to a warmer…