Question

Why the ports on western coast ofEurope remain ice free during
winter

Answer 1

Some do not get cold enough and others are salt water harbours (salt water requires a colder temperature than normal).

Answer 2

HEYA

Warm ocean currents like the Westerlies travel  all the way from  equator to eastern coast of north america and western coast of Europe during winter. As the  westerlies are warm currents originate from equator and travel towards western European coast, western European ports remain ice free during winter.

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