Is the earth sick? In recent years, abnormal weather has occurred in many places: wearing short-sleeved shirts in Antarctica, white snow falling in the desert
The issue of the earth’s climate is now a top priority for all countries around the world, and it is also because of the issue of the earth’s climate that scientists are worried.
As for the reason why everyone is concerned about the climate issue, it is because changes in the earth's climate will affect human survival. Human beings can only survive and reproduce in a suitable temperature on the earth. It will not work if it is too cold, or too cold. Not even when it's hot.
Although there are three habitable planets in the solar system, the temperature of Venus is too high and the pressure is too high. It is like hell, and humans cannot survive at all. Mars is too desolate and without the protection of a magnetic field, various cosmic rays will directly act on the surface of Mars. At this stage, humans cannot survive.
So at this stage, the earth is the only home for mankind. When the earth's climate undergoes major changes, mankind will not even have an alternative planet to escape migration, and can only silently live on the earth. suffering from climate change.
It is precisely for these reasons that the abnormal changes in the earth's climate have affected the nerves of people around the world. However, judging from the data in recent years, unexpected abnormalities have occurred in many places. climate.
In 2018, heavy snow fell in the Sahara Desert. The depth of the snow reached half a meter. A layer of white snow covered the yellow sand, making the arid desert covered with a layer of silver.
Before the formation of the Sahara Desert 2.5 million years ago, it was one of the hottest places on earth. Its maximum temperature once reached 58°C. It was considered one of the most inhospitable places for humans. In places where there was very little rain, half a meter of snow fell.
Also in recent years, some southern areas have experienced heavy snowfall that has not been seen for many years. At one time, there was an interesting story about a snowman stealing snow that made northerners laugh out loud. Can you believe it?
In February 2020, the Esperanza Antarctic Research Station measured the highest temperature in Antarctica, reaching 18.3°C.
As one of the coldest places on earth, Antarctica has an average annual temperature of -25 degrees Celsius, and the coldest year has reached more than -50 degrees Celsius. It is precisely because it is too cold that when humans entered modern civilization Previously, Antarctica has always been a restricted area for humans to set foot on.
However, it is such a refrigerator on the earth, but in recent years, temperatures that are inconsistent with the refrigerator on the earth have frequently appeared. In March 2015, the highest temperature in Antarctica was measured, 17.5, but last year At that time, the highest temperature ever recorded on the Antarctic continent was measured, 18.5 degrees Celsius. At this temperature, it is no problem to wear short sleeves. Is this still the cold Antarctic continent that people remember?
As for the Arctic Circle, which is also one of the earth's refrigerators, the temperature has reached record highs under successive heat waves. After entering July, the highest temperature reached 34. This is still the reputation. Just the freezing cold Arctic?
If these temperature changes are still within the range that humans can bear, and only temperature abnormalities occur in individual places, then the 70-degree high temperature in Kuwait will be fatal.
Many people have no concept of this temperature. In the food production process, there is a method called low-temperature slow cooking. The temperature is controlled at 60-70. It takes some time to slowly cook the meat. Cooked, and with the extreme weather in Kuwait this time, it is no exaggeration to say that it will be cooked directly if it is placed directly under the Kuwaiti sun.
So, is the earth sick? Why have there been so many abnormal weather events in recent years?
The theory of human intervention
It is an indisputable fact that the temperature of the earth is getting higher. Since records began, in more than 200 years, the average temperature of the earth has increased by about 2 degrees.
According to some research models, the temperature of the earth has increased over the past two hundred years, which is related to the trajectory of human activities. The increase in temperature over the past two hundred years has also been the two hundred years of rapid progress in earth science and technology.
The development of human science and technology, as well as the explosive growth of population, will inevitably increase the emission of carbon dioxide, and the increase of carbon dioxide will further intensify the greenhouse effect.
The above statements are the theory that human activities have caused the earth's temperature to increase. The core of this statement is that humans have changed the earth, leading to changes in the earth's climate.
According to this model's prediction, as the earth's population continues to grow and demand increases, the earth's average temperature will increase to between 2 and 4 in the middle and lower half of this century.
In order to keep the earth's temperature from rising within an acceptable range, countries around the world must control carbon dioxide emissions, and each country has formulated indicators, which means that you can limit how much you emit. You can only queue as many as you want!
I won’t go into details on this. Friends who are interested can search for an interview program by Academician Ding Zhongli, which explains it in great detail.
Theory of Earth Cycle Changes
However, there is also a group of views that believe that changes in the earth’s climate and rising temperatures have little to do with human participation, but rather the occurrence of cycles in the earth’s climate environment. sexual changes.
According to many existing research data, during the Han Dynasty more than 2,000 years ago, the temperature was even hotter than now. Human beings during the Han Dynasty were still an agricultural society with inefficient production. At that time, , human intervention in the earth's climate can be said to be minimal.
By 1640, the earth entered the Little Ice Age again. The average temperature of the earth dropped sharply, making it impossible for the nomadic tribes living in the north to survive. In order to snatch the living space, they moved like warmer It was during this period that China's Ming Dynasty, which migrated to the south, clashed with the nomadic tribes in the north and perished.
In the Little Ice Age, due to reduced crop yields, nomadic people living in the north could not survive and migrated south, leading to conflicts that occurred all over the world.
From the high temperature weather more than 2,000 years ago to the Little Ice Age in 1640, the earth's climate and temperature changes, in essence, human participation at that time was extremely limited.
It can be seen from this that the earth's temperature changes are cyclical, first hot, then cold, and then hot again. Human beings are now in an interglacial period, after the end of the Little Ice Age, when the temperature rises.
The main reason for the periodic changes in the earth's temperature is speculated to be related to the activity of sunspots, because the sun is the earth's main heat source, and changes in the sun directly lead to changes in the earth's surface temperature. The periodic changes in sunspot subsidence affect the temperature changes of the earth.
Conclusion:
But an undeniable fact is that whether it is the theory of human intervention or the theory of earth cycle changes, there is an undeniable fact that the earth’s temperature will increase in the future. It will continue to rise over a period of time.
Therefore, in the hot summer, we must do a good job to escape the heat.
Do you think it is human intervention that is causing the earth’s temperature to rise? Or is there cyclical changes in the earth's temperature, causing the current temperature to rise?