Global warming is known to everyone! This has become the "main cause" of the earth's climate change, and at the same time, it is also one of the main factors in the earth's extreme climate change. And global warming is still ongoing, which is also undeniable. However, in order to alleviate the sustainable development of global warming, scientists are also calling for global energy conservation and emission reduction, reducing greenhouse gas emissions, increasing afforestation, establishing natural green spaces, etc., so that greenhouse gases can be naturally purified.
It's just that the effect is not obvious, so the warming caused by the earth is still continuing. However, in the context of continued global warming, scientists have discovered a new phenomenon, that is, the emergence of "natural" carbon-absorbing zones on the earth, which are very powerful. This has a great effect on global warming.
Then the question arises again, is our earth going to "great cooling", as long as the earth frantically absorbs carbon, this great cooling will come true? Let's take a look, but we'll be clear.
The warming of the planet continues
First, let's look at changes in china's average temperature. According to the data released by China's Climate Center, the national average temperature in 2021 (as of December 28) was 10.7 °C, 1.0 °C higher than usual, the highest in history since 1961. And in 2021, There are many extreme climates in China, among which high temperatures, rainfall, sand and dust, cold waves, etc. are all showing abnormal patterns.
For example, the national average precipitation is 671.3 mm, 6.8% more than usual; the average precipitation in the northern region is 697.9 mm, 40.6% more than the usual year, the second most in history.
Therefore, the climate state of our country in 2021 is not good. For the world, it has become a fact that the global average temperature will continue to rise in 2021, so the rise in China's temperature has also become a "foregone conclusion". According to statistics, global greenhouse gas concentrations have reached new highs in 2020, and this growth will continue in 2021. Among them, from January to September 2021, the global average temperature is about 1.09 degrees Celsius higher than in 1850-1900.
So, at the time of publication, the World Meteorological Organization preliminarily estimated that the average global temperature in 2021 may be the sixth or seventh warmest year on record. Therefore, from the trend point of view, 2021 does not rule out a new high.
From the data known to China and the data released by the world, the trend of global warming in 2021 is still there. So there's nothing wrong with the planet's warming continuing.
However, in the context of the warming of the earth, we also ushered in a good news, that is, a nasa-supported study, published in the journal Science, directly and publicly explained that the earth has carbon absorption phenomenon, which is of great help to greenhouse gases.
The Southern Ocean is sucking up carbon on a large scale
Of course, the carbon absorption problem found this time is a little different from the previous one, before the Cambridge University and Singapore Nanyang Technological University scientists found that in the tectonic plate area of the Earth, there is a "slow motion" collision phenomenon, and a large number of "carbon swallowing" phenomenon has appeared, and it is blocked in the depths. Rather than resurfacing in the form of volcanic emissions, the study was published in Nature Communications.
This time it was a discovery of the Southern Ocean. And it also proves once again the fact that the earth is frantically sucking carbon. According to the scientists' observations, the oceans south of 45 degrees south latitude have a large net carbon flux each year, absorbing more in the summer and deflating less in the winter compared to other recent observations. They found that the region's waters absorb about 0.53 petagrams (530 million tons) more carbon per year than they release.
See? To sum up, the region is sucking carbon like crazy, and the summer absorption is even stronger, absorbing about 530 million tons more carbon per year than the release, which is really good. This also indicates that carbon dioxide in the lower atmosphere on the surface of the Southern Ocean has decreased in summer, and the oceans are absorbing carbon on a large scale. After observation, the scientists showed through computer models that 40% of the carbon dioxide in the world's human-generated oceans was originally absorbed from the atmosphere into the Southern Ocean, making it one of the most important carbon sinks on our planet.
Therefore, the Southern Ocean has also become the main "carbon absorption zone" of the earth, is this the earth "self-help"? Of course, whether the earth is saving itself, we don't know. But it is true that this phenomenon can be of great help in alleviating global warming, and it can reduce the accumulation of carbon in the atmosphere, thereby reducing the rate of rise of the greenhouse effect. If you look at the volume of carbon absorption, the annual carbon absorption is about 530 million tons more than the release, it seems that there has been a "reversal".
doubt! Is the earth really going to cool down a lot?
Indeed, from the data point of view, this is a very good phenomenon. But is the planet really going to cool down a lot? In fact, this is completely impossible, this data is only for the changes in the carbon absorption area of the Southern Ocean, in addition to the carbon absorption area of the Southern Ocean, more areas are "overloaded" state. So looking at the entire region of the earth, the "carbon absorption" of a southern ocean region is far from reversible. Otherwise, the continuous development of the earth's warming would not exist.
And the facts tell us that the earth is still warming. So there is no "big cooling", the earth wants to "cool down", may still have to fundamentally solve the problem, we see the earth's "carbon absorption", whether it is said that the earth is "self-help", or the phenomenon of carbon absorption that has always existed.
We should all reduce our greenhouse gas emissions so that we can "reverse" the warming of the planet. Otherwise, relying on the natural changes of the earth, it may be difficult to achieve a constant warm situation.
Therefore, we find that the Southern Ocean is absorbing carbon on a large scale, which does not mean that the entire earth is going to cool down greatly, and the actual data also proves that the earth is warming. Of course, if the situation in the Southern Ocean occurs in many regions in the future, it is really possible to change. However, only evidence can prove the appearance of haunting, otherwise everything is "utopian".