Originally posted by Old Hack
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The gulf stream follows a South -North trajectory and travels up the middle of the Atlantic to the arctic circle. It can´t shift South. It´s either there or it isn´t.
It´s still there because otherwise the arctic on the Atlantic side would freeze up, and the Norwegian coast would be locked in.
The Gulf stream hasn´t slowed down.
It´s cold because the Jet stream has moved South (that´s a wind in the upper atmosphere).
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