Impact Of Climate Change On The Atlantic Ocean:
Why in the discussion?
According to a study published in Nature magazine, the impact of climate change has now also appeared on the Atlantic Ocean. Due to climate change, the speed of Atlantic Ocean transmission, which is operating in hot latitudes in the high latitudes of the Northern Hemisphere, is slowing down. According to scientists, serious consequences of this phenomenon can be seen in the future.
According to this study, the Atlantic Meridional Overturning Circulation-[AMOC] has decreased by around 15 percent since the middle of the 20th century.
The water level in the Atlantic is decreasing by about three million cubic meters per second.Which is equivalent to about 15 Amazon rivers.
This transit is partly responsible for the temperate weather in western Europe. And these changes are being associated with the heat wave in the North Atlantic Ocean recently during the summer season.
The effect of this change in the Atlantic is also seen in Europe. Weather scientists are also looking at adding to the changes in the Atlantic temperature.
This change can affect the livelihoods of people dependent on fish farming. For example, the economy of New England region rests on the fishing itself.
What is AMOC?
AMOC carries hot water upwards from the equator to the north end of the Atlantic Ocean and brings back the cold water through the deep sea.
AMOC circulation is a part of a large global system of ocean currents operating from the salinity and temperature emissions of the ocean’s water.
Hot water flows northwards in the Atlantic and cools down. Since the density of cold and saline water is high, it flows back towards the south through deep ocean. This circulation can be compared to a conveyor belt.
Reason for change in AMOC?
According to experts, this change can lead to the breakdown of glaciers in Greenland. It may also be due to climate change, which is changing the water levels in different areas.
However, some researchers say that such changes were already anticipated. But there was nothing clear about this.
It is complex and difficult to explain the impact of climate change on the ocean currents, which can not be completely understood.AMOC has been slowing down for nearly 150 years and continues to be this too. In the past 100 years, it has reached its lowest level.According to another research by 1850, this change was due to natural causes.But during the industrial revolution, it changed rapidly.
Source: The Indian Express and DNA
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