Global warming has taken everything. It has influenced the lives of humans and other organisms. Now it is taking down the Atlantic Meridional Recirculation (Amoc), also known as the "current" of the Gulf Stream. The Amoc carries the warm water north to the North Pole. There it gets cooler and denser and flows back to the south. The cooling is disrupted due to global warming and leads to the melting of ice in the Arctic. This situation is highest in Greenland.
For 1,600 years, the Atlantic current has never been as deep as it is today. Research shows that this is due to climatic changes caused by global warming. The scientific evidence shows that such a catastrophic collapse of the Gulf Stream would take centuries.
Such a collapse will lead to extreme winters in Western Europe. The east coast of the US will hike with tropical rains on the sea level. Recent research shows that electricity is 15% lower than it used to be around 400 n. Chr. The only reason for this situation is human activity leading to global warming.
When the instruments were used in the sea in 2004 to measure the flow, the scientist observed the decrease in the flow. But recent studies show that the vast ocean-based evidence has outdone the old readings and that the current has never been as low as it is now.
The University College London researcher – David Thornalley, who said one of the new studies on this topic,
"Amoc is a really important part of Earth's climate system and has played an important role in abrupt climate change in the past. "
During the previous Ice Age, some of the major changes in temperature in the short span of one to three years led to temperature changes of 5-10 degrees Celsius. This led to massive changes in the Atlantic.
"The [current] climate models do not predict [an Amoc shutdown] will happen in the future – the problem is, how sure are we that it will not happen? It's one of those tipping points that have a relatively low probability, however have high potency. "
The study, published by Thornalley and colleagues in nature, was conducted using the core sediments commonly found in Cape Hatteras, North Carolina. This was to study the current (Amoc) over 1600 years. The study showed that the larger the size of the sediments, the more the flow is reflected and vice versa. They have also measured the characteristic pattern of temperatures that influence the current by using shells of tiny marine creatures. The water will cool in Iceland when it decreases. As the less warm water is shifted to the north and the waters off the east coast of the US become warmer.
Another study published in nature used the thermometer to observe the characteristic temperature pattern. Both studies concluded that Amoc today is 15 percent weaker than 1,600 years ago. The first study also concluded that the stream after the Ice Age has only weakened somewhat, but more after global warming. The second study found that most of the reduction was due to the burning of fossil fuels.
"If we do not stop global warming quickly, we must expect another long-term slowdown in the overthrow of the Atlantic."
Alexander Robinson, at the University of Madrid.