What happens if all the Arctic ice disappears? It could be a disaster for all mankind

The earth is the home of human survival, is a very suitable temperature of the planet. Any planet, its poles are often extremely cold places, the earth’s poles are naturally the same. The South Pole and the north pole of the earth are the two coldest regions on the earth, but they are different. The south pole is a land covered by ice, while the north pole is covered by the ocean.

Relatively speaking, the Arctic is warmer than the Antarctic, and the transition between winter and summer in the Arctic is also very obvious. When the Arctic summer comes, warm temperatures will make part of the frozen ocean melt again, and after winter, sub zero temperatures will freeze this part of the summer melting water.

Therefore, when we travel to the Arctic in summer, we will see a lot of water. This cyclical transformation of the Arctic has lasted for tens of millions of years, and has formed a very stable circulation system. However, when human beings enter the industrial age, the rapid development of science and technology continuously releases carbon dioxide and other greenhouse gases into the atmosphere, resulting in the rising global temperature.

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Rising temperatures also affect the cyclical changes in the Arctic. In recent decades, the overall coverage of Arctic sea ice is declining, and the new sea ice in winter is decreasing, while the melting sea ice in summer is increasing. In this process, ice and snow in the Arctic are gradually transforming into sea water.

According to a study, if human emissions of carbon dioxide into the atmosphere continue, then ideally, the Arctic summer in the next 30 years will be free from any ice cover and will melt into sea water. Even in winter, only a small amount of sea water will condense into ice. If things get worse, the Arctic may not be covered by ice in the next 10 years.

Some people may worry that sea level will rise sharply after all the ice and snow in the Arctic melt. In fact, this kind of worry is unnecessary. As we have said before, the glaciers in the Arctic and the Antarctic are different. The Arctic is a super glacier built on the sea, and under the ice is sea water. Therefore, the Arctic will have obvious winter and summer ice and sea water periodic transformation.

And friends who have studied physics should know that the volume of sea ice on the surface is the same as the volume of sea water they melt into, so even if all the Arctic glaciers melt, the sea level will not rise. It will not have much impact on the land for human survival, which is totally different from Antarctica, because Antarctica is built on land, and under the Antarctic ice is rock rather than ocean.

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So the constant melting of Antarctic glaciers will lead to a sharp rise in sea level. Although the melting of all the Arctic glaciers will not bring sea level rise, it will still have a great impact on the earth’s ecology, which may be a disaster for all mankind. What’s the matter?

To solve this mystery, we must first understand how the earth’s warm environment comes from? As we all know, the temperature and sunlight of the earth come from the sun, and the photon radiation of the sun does not show any temperature before it enters the earth’s atmosphere. The reason is that the universe is a vacuum state, the density of particles is very small, and the essence of temperature change is the thermal motion of molecules.

If a space molecular prince, then no matter how powerful the energy can not let the temperature reflected. Therefore, the background radiation temperature of the universe is very low. Only when the sun’s radiation enters the earth’s atmosphere can it bring about a significant increase in temperature. So the atmosphere is the earth’s first heating and insulation cover, which is what we usually call the greenhouse effect.

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The earth continuously receives heat from the sun, and at the same time, part of the energy will be reflected into space by the earth. Only in this way can the temperature of the earth be maintained at a relatively adaptive level. It can be seen that the earth’s albedo to temperature is very important for the whole earth’s ecology. If the albedo is reduced, the heat scattered by the earth will be reduced, and the earth’s greenhouse effect will be intensified.

71% of the earth’s surface is ocean, so the influence of Ocean on reflectivity is very large. We all know that the reflection of ice on sunlight is far stronger than that of water. The existence of a large number of sea ice in the Arctic can reflect more sunlight. But if all the sea ice in the Arctic melts into water, it means that the earth’s albedo will drop, the heat that can be reflected by the sun will decrease, and the heat that can be absorbed will increase.

The increase of heat absorbed and the decrease of heat reflected will increase the greenhouse effect of the earth and accelerate the speed of global warming. After the global warming trend accelerates, it will act on the Antarctic glaciers. At this time, the Antarctic glaciers will melt rapidly, and a large amount of water will melt the ocean, resulting in a substantial rise in sea level.

As we said earlier, the total melting of Arctic glaciers will not cause too obvious sea level rise, because the Arctic itself is floating on the ocean. But Antarctica is built on land. Once all the glaciers here melt, the sea level may rise by about 60 meters. At that time, at least a third of the earth’s land will be flooded.

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Only 21% of the land area where human beings can survive is desert. If we lose another third of the land, we will have less land to live on, which may be an ecological crisis for all mankind. The sharp reduction of land is not only the problem of lack of living, but also affects a series of other problems, such as the sharp reduction of food, frequent outbreaks of bacteria and viruses.

You know, after the land area is greatly reduced, human beings will gather more closely, which is the most likely time to cause some viral crisis. Moreover, after the melting of glaciers in the north and south poles, the permafrost will also continue to recover. There are countless kinds of ancient bacteria and viruses, which may pose a greater threat to the earth’s ecosystem and human survival than the rise of sea level.

Thus, the continuous disappearance of Arctic ice is very important for the earth’s ecology and human survival. If we want to slow down the disappearance of Arctic ice, the effective way is to reduce and control carbon dioxide emissions. Only when greenhouse gas emissions are greatly reduced, the greenhouse effect of the earth will slow down, and human beings will have more time to solve the crisis.

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Some people may say, why not stop carbon dioxide emissions completely? In fact, as long as smart friends, I believe all know that this is impossible. If human science and technology want to develop rapidly, it can not do without the rapid development of industry, and the rapid development of industry can not do without greenhouse gas emissions.

Therefore, the complete cessation of carbon dioxide emissions means that we have to give up science and technology and industrial development. It is impossible to think about this. Without the rapid development of science and technology, although the problem of global warming has been solved temporarily, in the long run, the human crisis will be even more serious. You know, it’s not only the earth’s disasters that can threaten the earth and human survival, but also the disasters from space, such as asteroid impact.

If there is no strong scientific and technological strength, once an asteroid hits the earth again in the future, the fate of mankind will disappear completely in this world, just like the dinosaurs 65 million years ago. Only with strong scientific and technological strength can we cope with the disaster from space. And with strong scientific and technological strength, even if the earth becomes a world of water, without land, we can build marine cities and live in them.

Therefore, human beings are in a race against time now. As long as the speed of scientific and technological development exceeds the speed of ecological deterioration, we have hope to solve all possible survival crises in the future.

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Guys, what do you think of the melting Arctic glaciers? Welcome to leave a message below to discuss and express your opinions.

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