What will happen if all the glaciers melt? How will mankind survive in this situation?

Nearly 7 1% of the earth is water, but some of the water on the earth exists in solid form. They are glaciers. Glaciers are not common in our life, because they only exist at the top of the mountain or at the poles at high altitude.

Although we seldom see glaciers, they are very numerous. 10% of the land on the earth is covered by glaciers, and 80% of the fresh water resources are also stored in glaciers.

At present, due to the influence of climate warming, glaciers around the world are gradually melting or even disappearing. Since 1980, the global glaciers have "thinned" by about 1 1.5 meters every year.

Almost close to the height of three stories, some people can't help but ask, what will happen to the earth if all the glaciers melt? How will mankind survive in this situation?

When it snows, the snow piles up layer by layer. Because of the cold weather in the North and South Poles or high mountains, the speed of snow is much faster than that of melting, so when the next snow comes, it will be covered with a snow. In the long run, the snow will get thicker and thicker.

Thick snow layers will squeeze together and gradually change from snow to larger snow particles. With the change of seasons, some snow melts and then freezes, and then it is covered with new snow, which will form ice in the long run.

After hundreds, tens of thousands or even hundreds of millions of years of continuous accumulation, glaciers finally formed. The huge volume of the glacier brings great pressure to the land bearing it, and almost all the rocks under the glacier are "depressed" by 0.5~ 1 km.

Glaciers are mainly divided into two types. The first is the continental ice sheet. The total volume of the two largest ice sheets on the earth accounts for 99% of the total volume of global glaciers. These two ice sheets are the Antarctic ice sheet and the Greenland ice sheet.

The area of these two glaciers is about 6.5438+0.465 million square kilometers, and the thickness of the ice sheet is about 654.38+0.980 meters. The thickest ice layer in the east can reach 4267 meters. The second is mountain glaciers.

As the name implies, mountain glaciers refer to glaciers that cover high mountains. Icebergs exist in the famous Himalayas and Andes. All glaciers in China belong to mountain glaciers.

Moreover, the glacier area in China accounts for 14.5% of the world's glacier area, and there are glaciers in six provinces (autonomous regions) such as Xinjiang, Qinghai and Sichuan, among which there are more than 20,000 glaciers in Tibet.

The seemingly solid glaciers will not be as motionless as we think, because the glaciers on the rocks will "escape". Part of the ice at the bottom of the glacier will melt due to continental temperature and high pressure friction.

Melting water will make glaciers "slide away", and some glaciers can even move about 30 meters in one day. In addition, when the thickness of the glacier is more than 50 meters, plastic flow will occur due to pressure.

Glaciers will become a lot of water after melting, so the most direct impact is sea level rise. If all the global glaciers melt, the sea level will rise by about 66 meters, equivalent to the height of 33 floors.

In other words, all the places near the sea below the 33rd floor will be flooded. After the sea level rises due to the total melting of glaciers, the area of Europe will be reduced by 20%, that of North America by 10% and that of Asia by 5%. Only Africa will not affect its region because of its geographical environment.

Many coastal countries or cities will face great crisis. For example, Japan, with an average elevation of only 440 meters, will only have some mountain plateaus for human survival after the sea level rises by 66 meters, and countries such as the Netherlands, North Korea and South Korea may face the danger of national extinction.

Because the seaside transportation is more convenient, many countries will establish economic center cities in coastal cities for economic development, such as Shanghai in China, London in France and Sydney in Britain, which are all very important national key development cities.

Once the sea level rises, these cities will be seriously affected. Most residents can only be forced to move out, and buildings such as houses and bridges will be completely submerged. All the manpower, material resources and financial resources accumulated before need to start from another place.

Suppose that the unexpected disaster site of sea level rise is instantly submerged, and all the flooded areas will have no terrestrial life and the global economy will be paralyzed.

The dangers brought by the complete melting of glaciers are far more than these. Humans have found viruses in glaciers 30,000 years ago, which is also the biggest virus we have found. In addition to this virus, the virus that caused the Spanish flu in1918 ~1919 is also hidden in glaciers.

What is even more frightening is that there are countless unknown viruses hidden in the glacier. Once the glacier melts, these viruses will spread through various channels, causing incalculable terrorist consequences. Some data show that:

The total melting of glaciers will not only bring various effects to human beings on land, but also have a fatal impact on the global climate. Because glaciers are mostly composed of fresh water, the melted fresh water will go directly into the sea. This will lead to changes in ocean currents, which will directly affect climate change.

By then, the climate of the whole earth may undergo subversive changes. After all the glaciers melted, the flooded cities ceased to exist, and about 590 million people were forced to move to inland cities with higher altitudes. Penguins, polar bears and other polar animals are all extinct because of the sudden disappearance of their homes.

The breaking of atmospheric thermal balance and the change of ocean currents lead to the occurrence of extreme weather in turn, and tsunamis, floods and even earthquakes will frequently appear in our lives.

If all the glaciers melt, the land area will be greatly reduced and the living environment of people will be further compressed. Climate change seriously affects the ecological balance, making it difficult for crops to grow normally, and there may be a crisis of grain shortage.

The living environment of all kinds of creatures was destroyed and species began to become extinct. The spread of the virus has forced all mankind to reduce aggregation, and the medical community has also continuously developed drugs to inhibit, eliminate and treat prehistoric viruses.

At the same time, there is less and less fresh water for drinking, and the direction of scientific research will also develop towards solving the food crisis and the shortage of fresh water. After that, the whole earth was wrapped in the ocean, and human beings had to consider other lifestyles.

After hundreds of years of research, it failed to build a closed living space on the seabed, and at the same time, human beings finally started the Mars immigration plan. Countries put aside their competition for a while and began to work together in Qi Xin to study the continuation of human life in Qixin.

With the passage of time, mankind has established the International Space Station on Mars, and has continuously sent materials and immigrants to Mars. At the same time, a large number of scientific research teams are still trying to study ways to prolong life.

A large number of plant seeds and animal DNA are sealed and transported to outer space. While exploring new planets suitable for human habitation, they expanded the area of Mars base.

In hundreds of years, human beings can basically achieve self-sufficiency on Mars, and the appearance of human beings has changed greatly under the influence of cosmic rays, but the pace of human beings looking for new living homes has not stopped.

With the rapid development of science and technology, people's journey has been extended to the whole solar system. Hundreds of years later, human beings seek survival and development from different directions. Some people live on the rest of the earth.

I moved from the plain to the mountainous area, endured all kinds of extreme weather and tried my best to save all kinds of materials. Some people use the most advanced manned spacecraft and spend years exploring new livable planets.

Some people have completely adapted to life after moving to Mars and the moon. After paying high immigration fees, they took the proof of immigration to the planet and shuttled between Mars and the moon according to their needs.

Many countries have been shuffled and merged for hundreds of years, and the research and development of thermal weapons is no longer the absolute performance of national strength. The new country pays more attention to the exploration of alien planets and resources, so that more people can survive forever.

Scientific research in some key fields has also become an open research organization without borders. The most knowledgeable leaders of all mankind in the fields of physics and astronomy enjoy the achievements of scientific research in order to find the best way to prolong human life as soon as possible. ...

At present, glaciers around the world are melting. British scientists come to a conclusion by comparing satellite images with data surveys in high mountains and polar regions and analyzing a large number of data.

Since 1994, about 28 trillion tons of ice on the earth have completely disappeared. And affected by the greenhouse effect, this data is still increasing.

Living on the mainland, we may not feel the obvious changes brought about by the rising temperature, but Greenland, which is located in the Arctic Circle, has undergone tremendous changes with the general increase of global temperature.

Because 654.38 million tons of ice are melting every second, this is undoubtedly a heavy blow to the locals living in the world of ice and snow. The rising temperature caused a large area of ice and snow in Greenland to melt, and the originally solid ice surface became an ice surface mixed with ice and water.

Locals who used to go out by sled pulled by dogs had to sell their sledges and travel in other ways because of environmental changes. Many local glaciers have also collapsed due to melting and cracks. There are tens of stories of glaciers that have existed on the earth for hundreds of millions of years, and it only takes a few minutes to completely disappear into the ocean.

The key to prevent glaciers from melting is to prevent the aggravation of the greenhouse effect, and the core factor affecting the greenhouse effect is to control carbon emissions. If we want to make the home on which human beings live longer, each of us should take action.

Carbon emission is the general name of greenhouse gas emission, which can be simply understood as carbon dioxide emission. Whether we make a fire to cook or drive, even the fart and burp of cattle will produce carbon emissions.

However, the carbon emissions that lead to global warming are not only due to the waste gas produced by material combustion, but also due to the increasing population and sustained economic growth.

In response to the global temperature rise, the international community formulated the United Nations Framework Convention on Climate Change as early as 1992. Since its entry into force in 2005, it has clearly constrained the carbon emissions of more than 30 countries.

Although the United States and Australia, the major greenhouse gas emitters, have not yet ratified the agreement, all countries in the world are making efforts to reduce carbon emissions. As individuals, how can we strive to reduce carbon emissions?

Carbon footprint represents the "carbon consumption" of a person or a group. "Carbon" refers to natural resources composed of carbon such as oil, coal and wood.

The more "carbon" is consumed, the more "carbon dioxide" is produced, and the greater the "carbon footprint" is. Conversely, the smaller the "carbon footprint". The most important thing is to reduce your carbon footprint, such as saving electricity, using less or no air conditioner, and turning off the stopped appliances in time instead of standby.

And drive fewer private cars, walk more or take public transportation. Minimize the generation of garbage and do not waste recyclable garbage. Avoid food waste and try to buy locally produced food.

The danger brought by climate change will affect the development of all mankind, and if left unchecked, it will even cause a devastating blow to the whole earth. The complete melting of glaciers is just an idea for us to face global warming.

But in fact, according to this trend, all glaciers will really melt in less than 80 years, and the above conjecture is very likely to come true.

In order to protect the home where we live together, I hope you and I can start from small things, start from little by little, reduce our carbon footprint and care for our home on earth.