What would happen if the Gulf Stream failed?…

What would happen if the Gulf Stream failed?…

What would happen if the Gulf Stream failed? 
Imagine a world where suddenly the Gulf Stream stopped flowing. Do some research and provide thoughts in at a minimum of 200 words, on either the potential causes of or results from this event. The Gulf Stream is closely related to a number of both oceanic and atmospheric systems so potential causes and results might be rather diverse. 

Please don use Wikipedia as a source, use the attach source and any only credible scholar sources. 

REVILLE, W. (2003-01-09). Gulf Stream disruption could mean big chill. The Irish times,, 8.
 
Additional Requirements 
Min Pages: 1 
Level of Detail: Only answer needed