There are two kinds of ice ages, one is the Little Ice Age and the other is the Great Ice Age. The Great Ice Age can last for a very long time, possibly for millions of years. Once the earth enters the eight major ice ages, all the life on the earth will perish. In the long years, the earth experienced several major ice ages, and the Little Ice Age was relatively mild. It can last for decades or so and will not bring absolute danger to the earth. The last Little Ice Age was in17th century. At that time, the number of sunspots decreased and the rivers on the earth froze, which brought great losses to mankind. So when is the next ice age? Humans have now entered the era of scientific and technological development, and the ice age has a lot to do with the activities of sunspots!
Therefore, as long as the activity of sunspots is detected, the arrival of the ice age can be inferred. As early as a few years ago, some scientists predicted that the earth was not far from a new round of Little Ice Age. Scientists observed the sun and found that there was albinism inside the sun. Sunspots can often be seen from time to time, but now they are all gone, only the inside of the sun is white, which shows that the sun has entered a short dormant period. Many people may think that the temperature is so high now, and the global temperature is rising. If the earth enters the Little Ice Age, it may be good for human beings, but it takes a process for the sun to enter the Little Ice Age. Now scientists have initially detected that the activity of sunspots has decreased, and scientists are still observing!
If the number of sunspots continues to decrease, it won't be long before the earth enters the Little Ice Age. What would happen if the earth entered the Little Ice Age? The ice age also had its advantages and disadvantages. On the one hand, the temperature has dropped, the activities of various microorganisms have decreased, and the number of bacteria has decreased, so the probability of human infection with the virus will be much smaller. Because the climate is very cold, rivers are frozen, but the low temperature will lead to the decline of human travel ability, which may cause a short-term decline in the global economy. However, it seems that it is not necessarily a bad thing for the earth to enter the Little Ice Age. Now human science and technology are very developed.
The arrival of the Little Ice Age is very beneficial to the earth now, mainly because with the continuous development of science and technology, the greenhouse gases produced keep the temperature rising, with an average temperature of about 40 degrees Celsius. Compared with17th century, this temperature has increased by at least 10 degrees. The hot weather is unbearable, and it has also caused many natural disasters, typhoons and rainstorms. However, scientists have no better way to stop the trend of global warming. Once the Little Ice Age comes, a natural air conditioner appears, which can make the global temperature drop rapidly and return to the temperature decades ago, and the earth will usher in a relaxation period. I believe many friends know that the temperature of the earth will continue to rise like this!
Perhaps in a few decades, the snow and ice in the north and south will melt, the sea level will rise by tens of meters, and many land areas around the world will be flooded. Moreover, the rising temperature will bring more natural disasters, more creatures will be extinct, and human survival will be very difficult. The arrival of the Little Ice Age can cool the current high-temperature climate, melt all the ice in the Antarctic and the Arctic, and the earth can also lift the crisis. There will be a little ice age on the earth every 100 years or so, which is also a test for human beings. And human technology is constantly developing, and there may be more developed technologies in the future. Then we can know more about the mystery between the earth and the sun, which human beings have always wanted to know!
In my opinion, no matter whether the earth will enter the Little Ice Age in the future, human beings must protect our earth. After all, the earth is our home. In the future, mankind needs higher technology to explore the mysteries of the universe, so that we can solve the mysteries of the universe. I hope that human beings can become advanced civilizations in the universe, so that we can emigrate to other planets in the universe and let human beings develop better in the universe. This has always been our human dream and hope.
How can humans avoid the sudden white inside the sun or the recurrence of the ice age on the earth?
Suddenly, I was shocked to see the news. Don't think that the sun has turned white. This is a topic related to human life and death. This means that the sun will upgrade from G2V to F or A spectrum, and from yellow dwarf to blue dwarf, and the surface temperature will rise from 5770K to 7000K or even10000 K.. The sun will reach the height of Sirius. Let's see what is the result of sirian's return.
Sirius's mass is about twice that of the sun, its radius is 1.7 times and its luminosity is 25.4 times that of the sun. According to the distance of the livable zone, the new livable zone will be 25.4 5 astronomical units, which is about the position of Muxing, that is, the livable zone of the red giant sun. If the earth were still in its original position, it would receive Sirius energy radiation of 35.56 kilowatts per square meter.
What does it mean that the sun suddenly turns white?
Only after watching the news carefully did the florist know that this whitening was just a lack of sunspots. There seems to be nothing wrong with whitening in another sense, but if we understand it normally, the earth may come to an end!
Most of the time, sunspots can be observed by observing the sun with a telescope covered with Budd's solar film. The so-called sunspot is the activity of the solar magnetic field, which imitates the activity of the troposphere of the sun, resulting in the lower heat transfer below this area than the surrounding area, resulting in a lower temperature and darker color area on the surface of the sun, but even so, the brightness of sunspots is still far higher than the arc flash on the earth. The period of sunspot activity is 1 1 year, but the solar radiation changes little during this period.
The ordinate is the radiation energy obtained by the earth, and the unit is W/ m2. The abscissa is different in years. We can see that the difference between the radiant energy obtained by the earth in these years is about 1W/ m2, and the cross-sectional area of the earth is about127476090945447.68m2. This is indeed a huge number, but as long as you know it, it is only 1/68.
Does sunspot really have no effect?
There was a theory in the scientific community that the cold period from the beginning of the 7th century to the beginning of the 20th century should be caused by solar activities. This period is also known as the "Little Ice Age of Ming and Qing Dynasties", and its reason comes from the change of sunspots, because since the17th century, western scientific circles have made targeted observations on sunspots and made detailed records. Although not known at first, these data even played a decisive role in the subsequent statistics of sunspot cycles.
In these cycles, we have to mention the basis on which the sunspot records that occurred before the sunspot records were inferred:
The minimum period of the spoiler is the low solar activity period of 1420 ~ 1570. There is no official sunspot record in this period, which is inferred by analyzing the content of C- 14 in tree rings closely related to solar radiation.
Later, maunder minimum was discovered by edward walter maunder, a solar scientist, while sorting out the sunspot cycle. During the 30-year interval in maunder minimum, only 50 sunspots were found, while under normal circumstances, 40,000-50,000 sunspots should be observed.
The sunspot activity curve in the past 400 years is related to the so-called Little Ice Age in Ming and Qing Dynasties, but there is no direct connection between them. In the earlier Ott minimum period and the medieval maximum period, there was a warm period in the Middle Ages. Therefore, the emergence of this "Little Ice Age in Ming and Qing Dynasties" may have other external factors, including several statements:
This may be a more direct factor, because after volcanic ash enters the stratosphere, it will affect the solar radiation reaching the ground, which will lead to the decline of the global average temperature. In some areas, there will be a series of follow-up side effects, such as extremely cold weather, reduced crop production and greatly reduced population.
Judging from the eruption time of large and super-large volcanoes, it seems that there is still a certain coincidence, but whether it is caused by volcanoes needs more evidence.
This is the theory of climate change put forward by Serbian geophysicist and astronomer Milutin Milankovi, which is considered to be related to the eccentricity, orbital inclination and precession of the earth. However, the change period of these physical parameters of the earth is very long, so it is difficult to change greatly in a short period of several hundred years, so it may be referenced in a large period, but the influence of perihelion radiation and apohelion radiation in the earth orbit still exists.
As shown above, the period of revolution on the left side of the Earth's orbit has no influence, but the elliptical orbit on the right side will have perihelion and apohelion, while the Earth is alternately influenced by Jupiter and Saturn. Although the semi-long axis of the earth's orbit will not change, the eccentricity will be different, so the number of days in each season may be slightly different every year.
The apohelion and perihelion of the earth are only about 5 million kilometers, which is about 3.4% of the distance between the sun and the earth. But when the theoretical value of the earth's orbit is the largest due to gravity, the radiation difference between them will be as high as 23%. Of course, this requires the excellent position cooperation between Jupiter and Saturn in order to have such a super funeral.
The change of the earth's temperature since 2000, of course, the modern average temperature ratio 1000 years ago has increased by about 0.4 degrees, which is mainly caused by the greenhouse effect of human activities. If the eccentricity of the earth changes greatly due to the best combination of Jupiter and Saturn in the future, the greenhouse effect may be able to offset the distant snow effect caused by the perturbation of the earth's orbit, but there seems to be an unavoidable practical problem. What about the nearer perihelion? Who will hold an umbrella for the earth?
So the total thermal radiation may be close to balance, but the climate may be more extreme, which may be a problem that we humans should consider more!
How do humans know if the sun has turned white inside? It is not until recent years that scientists have found that the number of sunspots on the surface of the sun has decreased. To some extent, it can be said that the sun has turned white, but the heart is not white.
Whitening inside the sun means that the nuclear fusion power of the sun becomes higher, and higher nuclear fusion power means that the nuclear fusion of the sun is stronger and the radiation is greater. For the earth, we will see that the sun is brighter and hotter than it is now, and I am afraid it is no longer suitable for life on earth. Strong solar radiation means that the temperature of the earth will rise sharply until all the oceans on the earth are evaporated, and the earth will become a fireball, which is no longer suitable for human survival.
However, the decrease in the number of sunspots does not mean that the sun will turn white, which are two different things. The decrease in the number of sunspots means that solar activity will be weakened. Scientists predict that the number of sunspots will decrease by about 60% in the next decade or so, but is the number of sunspots really directly related to the earth's climate? This is really hard to say. The only possible evidence is that the earth experienced a little ice age of about 70 years at the end of the Ming Dynasty in the17th century, and sunspots almost disappeared.
The earth is the only living home for human beings, and the ultimate source of some energy on the earth is the sun. Without the sun, the earth would be a death star. The reason why life can be bred on the earth is related to the sun. The earth is in the livable zone of the sun, so there is a suitable sun on the earth and life is born. But if the calorific value of the sun decreases, it will have a great impact on the earth. The earth has experienced many ice ages, the latest of which was 654.38 million+years ago. Every ice age means that a large number of creatures will become extinct.
However, no matter how you look at it, the earth will not experience an ice age in the near future. At best, it's just the little ice age. The little ice age is far from the same. The Great Ice Age lasted for millions of years, and the temperature was very low, but the Little Ice Age was different. It can last for decades at most, and the temperature on the earth is still suitable for life, and life will not become extinct. Even if the sun enters a short dormant period again in the next decade, the impact on the earth will be very small. After all, in recent decades, due to the influence of the greenhouse effect, the earth has gradually warmed and the extremely low glaciers have melted. Therefore, the arrival of the appropriate Little Ice Age is not a bad thing.