This is not the first time that the earth's warm and cold development has been shown, but the future changes of the earth have always attracted everyone's attention.
Because everyone wants to know how the future trend will change. At the same time, there is a lot of controversy over short-term climate change, especially the winter we are talking about. Some people say that if the climate center predicts it to be cold winter, then the possibility of warm winter is high. If the predicted warm winter, then cold winter is great, because there have been too many "differentiation" in the past. Is this really true? Isn't this a new study from Texas A&M University that has published a new study that explains again the trend of Atlantic meridian flip circulation (AMOC). Does this mean it will bring about a huge change to our climate this winter?
Because we have also mentioned before, that is, the transition from Atlantic meridian to flip circulation (AMOC) may lead to our extreme cold climate. Is it a cold winter this year? Let’s take a look at what this is going on.
again obvious! Atlantic circulation weakens
In fact, in recent decades, the transformation of "Atlantic Merido-Flip Circulation (AMOC)" - referred to as Atlantic circulation for short. This time, the University of Texas A&M has once again given instructions on the circulation - indicating that its slowdown is still happening.
However, the impact of its weakening will also be more severe, bringing changes to climate patterns in tropical regions, and the impact on crop yields will also be enhanced.
According to researcher Spencer Jones, although AMOC is still within the range of changes in normal speed, as global warming continues to increase, AMOC may experience dangerous slowdown.
This weakening will not only bring about climate change in tropical regions, but will even affect global climate patterns.
For example: North Atlantic Rapids are the prevalent westerly belt surrounding the Arctic. If a major change is found, it will lead to rainfall in eastern North America and western Europe, and temperature changes will occur from 10% to 50%.
. Under the increasing pattern of climate change, the location of the rapids may migrate beyond the range of natural change as early as 2060.
So, this will likely drive a shift in the climate "critical point" of our planet.
In 2021, the Potsdam Institute of Climate Impact in Germany published a study in the journal Nature, pointing out that more and more evidence shows that the possibility of the Atlantic meridian flip circulation suddenly is increasing, and it is at a critical point of "collapse". Once it is closed, the east coast of North America and most parts of Europe will fall into a low-temperature glacier period.
means entering a "glacier period", but after that, there will be many researches In fact, even if the Atlantic circulation weakens, it will not lead to the occurrence of glacier periods.
On the contrary, it may also promote the strong development of global warming, so it can only change the temperature in regional terms.
This study also shows that despite the Atlantic circulation weakens, the northern hemisphere is still warmer in the end than the southern hemisphere. Most scientists believe that the temperature in Northern Europe (especially Norway) is higher because of the additional AMOC The heat transmission is roughly the case.
If we look at the conclusion of the end point, it is that after the Atlantic circulation weakens, it may lead to the occurrence of glacier periods, and it may also cause half of the earth's high temperature. Generally, the low temperature pattern does not have a definite answer anyway.
However, we still look forward to the stable development of the Atlantic circulation, so that the climate becomes more complex It is even lower.
What impact will the weakening of the Atlantic circulation bring? Can it be changed?
Changes in the Atlantic circulation will inevitably affect the climate of our earth. Human beings continue to discharge greenhouse gas , increasing about 40% of the carbon dioxide , and 90% of the "greenhouse heat" enters the earth, allowing it to integrate into the ocean.
For marine areas, only the surface area can directly absorb part of carbon dioxide, heat, etc., while the Atlantic meridian flip circulation (AMOC) allows the ocean to absorb more carbon dioxide, heat, etc. through the transfer of ocean water, put our earth in a slowing warming mode.
However, after it weakens, it will cause our surface temperature to rise again, so global warming is the "culprit" for the weakening of the Atlantic meridional flip circulation (AMOC), but it also drives the entire atmosphere change in reverse.
allows our planet to be in a more extreme state. If humans want to change this situation, they can only change it from the emission of greenhouse gases.
Therefore, changes in the Atlantic meridional flip circulation (AMOC) are also the main factor in stabilizing climate change. However, when we talk about rapid climate change, 95% are related to AMOC, and the major changes in AMOC have led to the coldest events on record. And will its continued changes lead to a greater climate change this winter?
As the Atlantic circulation weakens, is this winter destined to be a cold winter? The triple La Nina warning has been upgraded
, yes, if the possibility of "cold" weakening of the Atlantic circulation is explained, does that mean that this winter may also become colder as it continues to weaken?
plus the problem of the La Nina phenomenon we mentioned, it seems that there is really a trend like this.
Moreover, this year's rare triple La Nina phenomenon is basically certain to "pass through" the winter. Judging from the key index area of Niño 3.4, its intensity is still enhanced. Therefore, the triple La Nina warning is still escalating. Is it destined to be a cold winter this winter?
First of all, this concept cannot be determined whether it will cause our earth to heat up or cool down as a whole. Secondly, from the predictions under the La Nina phenomenon alone, the winter trend this year given by my country's climate center is not the cold winter trend, but the warm winter trend is greater.
National Climate Center clearly stated that the overall cold air intensity that is expected to affect my country in winter this year is weak, and the temperature in most areas of the country may be relatively high in the same period of the previous year.
Therefore, the trend of warm winter is large, not destined to be cold winter. Of course, do you think there is still a possibility of a cold winter this winter? There is indeed
. However, under the trend of global warming, the possibility of a warm winter is much greater, but it is not impossible.
Moreover, even if the climate center gives a trend of warm winter, it does not mean that it is not cold anymore. The occasional extreme cold in winter is a completely normal situation.
includes 2020/2021, we are also the year of Double La Nina. It was finally confirmed that it was another warm winter, but has it been cold?
must have been cold. At the beginning of 2021, most parts of central and eastern my country encountered a cold wave. The daily minimum temperature in more than 50 cities (counties) may break through the historical extreme value since the website was established. Do you think it is not cold in warm winter? It will be very cold too.
But we judge the cold winter, and the data for warm winter is the whole winter, so the triple La Nina warning has also been upgraded. Even if the warm winter trend is large, we must be vigilant against the extreme cold climate.
