In the context of global warming, it is surprising that Antarctica has the coldest winter in history, according to the Washington Post report, the Antarctic recorded the lowest temperature since October 5 - minus 61 degrees Celsius.
Prior to this, the coldest temperature recorded in Antarctic winter was minus 60.6 degrees Celsius in 1976, and in the past 30 years, due to global warming, Antarctic winter has actually been in a state of continuous warming, this time, 2.5 degrees Celsius lower than the average temperature value of the past 30 years.
<h1 class="pgc-h-arrow-right" data-track="3" > is the Earth really getting colder? Is a new ice age coming? </h1>
In the 1970s, when the Earth's greenhouse effect occurred and an ozone hole began to appear above the South Pole, some researchers pointed out that the Earth's "interglacial period" was nearing its end, and the Earth would soon begin to cool.
Abdusamatov, a scientist from Russia, also published a paper in 2007, arguing that the earth will usher in a new round of great ice age in 2041, and at the same time, in 2060, the earth may enter the coldest period of time.
However, in the past few years, because the overall temperature of the earth is rising, the melting rate of the polar glaciers is getting faster and faster, and the fact that the earth is getting colder is gradually being considered wrong.
Of course, even if global warming has become the mainstream, but there are still researchers who say that the main cause of global warming, in fact, has little to do with human beings, but is related to the cyclical changes of the earth, the intensity of solar radiation, the internal movement of the earth, etc., will lead to changes in the earth's climate, after all, before the human industrial revolution, in fact, the earth is also the alternating warm period and cold period.
Through the study of oxygen isotopes in Greenland ice cores, some researchers pointed out that the earth's climate change is a 100,000-year cycle law, of which every warm period of about 10,000 years will enter a cold period of up to 90,000 years.
We all know that modern scientific research believes that an ice age on the earth ended about 10,000 years ago, and in the past 10,000 years, the earth was in a relatively warm period, especially more than 1,000 years ago, when the northeast region of China was a warm and humid climate environment.
If researchers are right about the idea that the Earth is a climate change cycle every 100,000 years, then the Earth is indeed slowly entering a new ice age, but now due to greenhouse gas emissions, the cyclical changes in the Earth's climate have been disrupted, making people feel as if the Earth is continuing to warm.
<h1 class="pgc-h-arrow-right" data-track="24" > so is the Earth getting colder or hotter? </h1>
At present, the mainstream view is still that the earth is warming, that is, the greenhouse effect caused by human activities, is still continuing.
Take this year's southern hemisphere, in fact, since the southern hemisphere entered winter, there have been abnormal low temperature weather in many parts of the southern hemisphere, and the equatorial region has begun to rain blizzards, which have also been considered to be the beginning of a new ice age on the earth.
However, the researchers believe that this is actually due to the climate anomalies caused by global warming, because when the Earth's climate is on the verge of collapse, such extreme abnormal weather will become common.
For example, this year the Northern Hemisphere has experienced terrible extreme heat, and before the end of this century, a new climate in the Arctic will be formed, and there will be no more ice in the spring and summer of the Arctic in the future.
Therefore, although this time the Antarctic has the lowest temperature ever recorded, researchers still believe that this is not a sign of the earth's cooling, but a new signal for humans, reminding humans to find a way to restore the climate balance as soon as possible, otherwise it may become more serious.
<h1 class="pgc-h-arrow-right" data-track="25" > so why is there the coldest temperature in history in Antarctica this time? </h1>
After research, this is actually related to the strong polar vortex in the stratosphere in the southern hemisphere in the winter, because of the high-speed air flow, resulting in cold air stagnation over the Antarctic, which led to the emergence of the lowest temperature in the Antarctic.
It is as if this summer, there was a "hot dome" in the air over North America, resulting in the inability of the cold air mass to enter, resulting in extreme heat, which belongs to the extreme weather of the earth.
In addition, the researchers said that the continuous expansion of the ozone layer in the antarctic may also be the reason for the historical low temperature in antarctica this year, because the expansion of the ozone hole will further strengthen the activities of the polar vortex, thus forming a vicious circle, in short, the emergence of the polar vortex will accelerate ozone depletion, which will make the problem of the ozone hole more and more serious.
Naturally, whether the earth is getting cold or warming, the lowest temperature in the history of antarctica this time will not be a good news, and this year, the winter in Antarctica is indeed colder than in previous years.
However, if this situation only occurs this year, it does not actually say anything, nor can it be used as evidence that the earth is getting cold, because from the overall development of the situation, the melting of Antarctic glaciers is still continuing, and the earth is still warming.