"The earth is on the verge of 'collapse'. If we do not take action, the climate crisis will become the biggest threat in the history of modern humanity." At last year's International Conference on Climate Change (COP26), the father of the world's natural documentary, David Attenborough , gave advice to all mankind.
Climate change, earth warming and other topics have been development issues that all mankind attaches importance to. This year alone, at least 15,000 people in Europe have died from high temperatures, which shows how harmful it is. However, a new study published by the MIT Institute of Technology recently pointed out that the earth has a special mechanism that can self-regulate to the appropriate temperature of human habitation without human intervention.
"Stable Feedback Mechanism" can offset the impact of climate change
my country has shown a significant trend of temperature increase since 1951, with an annual average temperature increase rate of 0.26℃/10 years, far higher than the global level in the same period (0.15℃/10 years). Therefore, the spontaneous temperature regulation behavior of the earth has been studied in China. Scientists have proposed a "silicate weathering" conjecture. MIT's research is also based on this conjecture to prove it with real data.
According to "Science Progress", Massachusetts researchers recorded global average temperature changes over the past 66 million years and used random differential equations to calculate all characteristic patterns of paleo-climate. After comparison, they found that the earth has a "stable feedback" mechanism that can offset the impact of climate change, which means that the earth can pull the climate back from the risk edge for at least hundreds of thousands of years.
As we all know, the main reason for the current global climate warming is that humans over-emission of carbon dioxide, which causes the greenhouse gas in the atmosphere to increase the earth's temperature too much. The key to the stable feedback mechanism is that "silicate weathering" consumes the carbon dioxide content in the atmosphere during the earth's carbon cycle, thereby regulating global temperature.
In other words, the earth will use its own carbon emission reduction method to solve the problem of excessive carbon dioxide emissions, which is great news for us. After all, climate change has long caused trouble to human life. From the feedback mechanism, it seems that there is no need to worry about entering the era of hot or cold in the future, but at the same time, scientists have also discovered another difficult problem.
time span is too strong, and the feedback mechanism disappears
It is worth noting that the conclusion of "stable feedback" proposed by Massachusetts also has time constraints, because the earth's regulation ability will decrease accordingly with the extension of the time scale. Once it exceeds 1 million years, the mechanism will fail. Therefore, humans cannot rest assured from now on. As of now, there is no data to prove when the earth will have "self-regulation" and how long it can last.
For us humans, every 1℃ increase in the average temperature will bring a series of problems such as sea level rise , glacier retreat, etc. If we reach the climate critical point of 2℃, how many people can withstand it? At that time, in order to continue the fire of human civilization, we can only find a way to leave the earth and consider immigrating to another planet. The first thing we need to solve is how to deal with the ubiquitous radiation infringement in space.
According to Science Advanceds, 11 astronauts encountered particle flows many times during their life in the space station. The large amount of cosmic radiation contained in them caused DNA in their bodies to cause lesions and even threaten life.
To solve this problem, NASA opens an external consultation plan. In 2017, a protein-enabled substance (Biosct precursor) stood out in the competition. It was originally used to help the human body restore its body's functions to the level of adolescence, but was later proven to improve human DNA damage.
astronauts' space exploration career is already full of crisis, so the discovery that Bioscts may be able to withstand cosmic radiation also made NASA experts particularly happy. If this idea is feasible, it will significantly promote the immigration to space program. After all, the physical fitness of ordinary people is often not as good as that of astronauts, and the issues that need to be considered are more and more complicated.
, and considering that "Biosct" has long been applied, it has become a healthy frequent visitor to the middle and high-income groups on the domestic Beijing & Cat platform. Harvard has also published a report that the survival period of hundreds of mice after ingesting this substance was extended by nearly 23%. It has both theoretical basis and practical applications. NASA only needs to do special research on cosmic radiation to find out whether this method is feasible.
Don’t want to leave your home, you must take good care of the earth
Earth has been through billions of years since its first sign of life. In the past 500 million years after the Cambrian , the surface climate and ecological environment were particularly suitable for biological growth. Even though there were at least 5 mass extinctions of biological extinctions due to various natural disasters during this period, it still did not completely disappear because the earth’s organisms can often quickly recover to the ideal state for living creatures to survive after the disaster. Therefore, some people also speculate that the earth itself is a "life body".
has also made many discoveries in modern academics that prove that "the earth is a living body". For example, some scientific researchers have discovered that the diameter of the earth in has a fluctuation range of 0.5 to 0.8 meters all year round, as if the earth is "breathing".
If this statement is followed, is the "stable feedback" mechanism discovered by Massachusetts the earth is saving itself? Is it because of the major natural disasters that have occurred before that, the earth is venting its inner dissatisfaction? Although there is no substantial evidence to prove this view, it is certain that once the temperature on the earth is out of control, we humans will be the first to suffer. Therefore, we must still have awe of the earth and not become a "parasite" that is harmful to it.
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