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Jet stream
A narrow current of strong winds high up in the Earth’s atmosphere. The jet stream directs the movement of weather patterns around the world.

Jet stream
Image courtesy University of Illinois WW2010 Project
Word of the day
Far North >> Located in Canada’a Arctic and sub-Arctic areas, the far North is home to many of the world’s fresh water glaciers, some of which are over 100,000 years old.