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It is true that the Gulf Stream stopped? Reward $2
Created by Yuri, 401 days ago, 803 views

It is true that the Gulf Stream stopped? And whether it is dangerous?
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Aravi401 days ago

Hi @Yuri

First of all thanks for this great question.

The Gulf Stream that helps to keep Britain and other northern Europe from freezing over in winter is slowing down faster now than at any time in the past millennium according to a study suggesting that major changes are taking place to the ocean currents of the North Atlantic.

Scientists believe that the huge volumes of freshwater flowing into the North Atlantic from the rapidly melting ice cap of Greenland have slowed down the ocean “engine” that drives the Gulf Stream from the Caribbean towards north-west Europe, bringing heat equivalent to the output of a million power stations.

However, the researchers believe that Britain is still likely to become warmer due to climate change providing the Gulf Stream does not come to a complete halt – although they remain unsure how likely this is.

Calculations suggest that over the 20th century the North Atlantic meridional overturning circulation – the northward flow of warm surface water and the southward flow of deep, cold water – has slowed by between 15 and 20 per cent.

The study used proxy measurements of the Atlantic currents, using ice cores, tree rings, coral growth and ocean and lake sediments, to estimate regional temperature variations and so assess how the Gulf Stream has changed over the past 1,000 years.

Reference:

http://www.independent.co.uk/environment/gulf-stream-is-slowing-down-faster-than-ever-scientists-say-10128700.html

Regards,

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2

Whiterabbit01401 days ago

No the Gulf Stream which runs from the inter-tropical zone towards the coast of Europe hasn't stopped. It does however move slightly. If the Gulf Stream had stopped we would be faced with massive weather changes in the Northern hemisphere. Its what gives Europe it's mild winters and temperate summers. If the gulf stream stopped we would see much more extremes of weather. Winters would be much colder on the coasts of Europe and the summers much hotter. It could even lead to an Ice Age.

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3

ha14400 days ago


@Yuri

The Gulf Stream and future climate change
A slowdown of the Gulf Stream and ocean circulation in the future, induced by freshening of the waters caused by anthropogenic climate change (via melting glaciers and increased water vapor transport into high latitudes) or simply by warming, would thus introduce a modest cooling tendency. This would leave the temperature contrast across the Atlantic unchanged and not plunge Europe back into the ice age or anything like it. In fact the cooling tendency would probably be overwhelmed by the direct radiatively-driven warming by rising greenhouse gases.
http://ocp.ldeo.columbia.edu/res/div/ocp/gs/

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4

Aravi386 days ago

Hi @Yuri

Thanks for selecting my answer as the best answer.

Regarding,

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5

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