This paper takes part in the series essay competition of “great science” of Recordunkown.
The earth is a beautiful planet of life, in this planet has a suitable temperature, is a very good ecological environment of the planet. It is because of the beautiful ecological environment of the earth that life can be born, and has continued to the present. Although the earth as a whole is a relatively suitable temperature planet, but in the north and south poles is still a frozen world.
The north and south poles of any planet are basically frozen regions, where the temperature is much colder than other places. The Antarctic and Arctic regions of the earth are naturally the same, and in these two cold regions, there are permafrost layers that have been frozen for tens of millions of years. These permafrost layers not only ice all kinds of ancient microorganisms, but also ice a lot of natural resources, such as methane.
Siberia is a vast area belonging to the Arctic circle. I believe many people know Siberia. We often hear in the weather forecast: “affected by the cold air in Siberia, most parts of China will be greatly cooled in the next few days”. In fact, the cold air that China suffers every year basically comes from Siberia.
Siberia is a world of ice and snow, where the ice layer is deep and vast, is an important place for scientists to explore. Due to the rising global temperature in recent years, the temperature of the north and south poles also began to rise, not only the ice and snow are melting, but also the permafrost is recovering. Scientists have found some frozen bodies of ancient creatures in Siberia, which are well preserved.
Although the continuous recovery of permafrost in Siberia is of great help to the study of paleontology, scientists do not want to see this happen. We should know that the recovery of permafrost may have many unknown impacts on the earth’s ecology, which may not be a good thing for the earth and human beings.
Last year, when Russian scientists were exploring the Arctic, they discovered for the first time that a large amount of methane was boiling in the sea, with a diameter of more than 15 meters. The concentration of methane was so high that people could scoop it out of the water with buckets. “It’s the most powerful methane fountain i’ve ever seen,” said Igor semiletov, the team leader and a professor at Tomsk University of technology in Russia
Team member Sergei nichifro recalled that as you approached the “emerald green” methane fountain, you could see how the gas rose to the surface in thousands of bubbles from the depths of the dark ocean. The atmospheric methane concentration in this area is 16%, which is 6-7 times higher than the global average.
So why is there so much methane leakage in this place? In fact, the root cause is still related to the rising global temperature. Due to the rising temperature, the underwater permafrost here is constantly melting, and a large amount of methane frozen in it will be released from the seabed. Although the area where scientists found a large amount of methane leakage is very small, it will not cause any impact for the time being.
However, with the continuous melting of permafrost, the methane released from the bottom of the Arctic sea may continue to increase in the future. Once the scale is formed, the impact on the environment will be very large. As we all know, methane is a very combustible gas. Once the methane released from the seabed loses its stability, it may cause explosion and cause great damage.
Moreover, the heat energy absorbed by methane is 28 times as much as that of the oxidation surface, which is a very dangerous temperature gas. Once a large amount of methane emerges from the sea floor, it may aggravate the earth’s temperature effect and make the earth’s temperature rise faster. This is what scientists are worried about. We should know that the rising global temperature has a more and more serious impact on the earth’s ecology.
Maybe in the eyes of many people, the rising temperature of the earth just makes us feel too hot to stand, as long as we hide at home and blow the air conditioner. In fact, this kind of cognition is very wrong. The damage and impact of global temperature rise on the whole ecology is devastating.
First of all, the rise of global temperature will aggravate the emergence of arid climate and make the vegetation more dry. I believe many people know that the number of forest fires is increasing in recent years. Last year, there were two large and terrible forest fires in the world, especially the primeval forest fire in Australia, which burned more than 500 million animals for more than four months. The ecological impact is even greater.
The main reason of forest fire is high temperature and dry climate. And this phenomenon will continue to increase in the future, we can imagine that the future of the earth may be full of forest fires, this is how terrible a disaster.
Secondly, the rising global temperature will also aggravate the frequent occurrence of ocean convective climate, with 71% of the earth’s ocean area. The ocean is the biggest impact of the rising temperature. In recent years, after the rainy season, the frequent occurrence of typhoons is due to the high temperature over the ocean. And the harm brought about by typhoon, I believe everyone can see that it is very easy to destroy their homes.
If you think that the rising temperature over the ocean is just bringing frequent typhoons, you’re wrong. The ocean temperature keeps rising, and what is really terrible is still in the later stage. If friends who have knowledge of the earth’s history all know that, 234 million years ago, the earth had rained for as long as 1 million years. The reason for such a long rainfall is that the plate splitting movement, global volcanic eruption and a large amount of carbon dioxide eruption took place at that time, which brought about the rising global temperature.
With the rising of temperature, the ocean continues to evaporate into the atmosphere, forming a long rain. If the earth’s temperature also continues to rise, then in the future such a long rain is also likely to happen again. It would be a terrible mass extinction.
Finally, the rising global temperature will revive a large number of ancient bacteria and viruses in the permafrost. Some people may say that bacteria and viruses that were tens of thousands of years ago can still be revived? Some people may think it’s impossible. But in fact, scientists collected bacteria and viruses from permafrost and have successfully recovered some of them in the laboratory. It can be seen that the vitality of bacteria and viruses is far beyond our imagination. As long as we give them a certain hotbed environment, even if they have been frozen for tens of thousands of years, the ancient bacteria and viruses that have been frozen for hundreds of thousands of years may be revived.
Once the ancient bacteria and viruses revive, we do not understand them at all. I believe that after this year’s COVID-19, we have more knowledge of the terrible virus. This is an invisible and terrible disaster.
As a result, scientists in Siberia found a spectacular methane eruption, full of deep concern. If this situation continues in the future, then the earth’s ecological environment is likely to usher in new changes.
Guys, what do you think of this? Welcome to leave a message below to discuss and express your opinions.