The Gulf Stream along the eastern US coast, the Canadian Maritimes and Western Europe has been slowing as well. It's going to create warmer summers and colder winters, especially in Northern Europe. It's the same problem; fresh water from melting ice is disturbing the flow.
Here's an over simplified explanation: As the Gulf Stream moves warm water northward, water evaporates making the water more dense. As it becomes more dense it sinks creating momentum. Adding additional fresh water slows that momentum.
One area that doesn't have to worry about weather change is Southern Florida as it will be mostly under water by the end of the century. Fun times.
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