If all the earth’s glaciers melt and the oceans have 20 million cubic kilometers more water, what is the concept?

When it comes to global warming, this problem is a cliché. Everyone has heard of it and everyone knows what it is, but only a handful of people are taking steps to prevent this huge problem. occur. What most people don’t know is that this unsolved problem is getting bigger. If the greenhouse effect continues, all glaciers will melt. What will happen if all glaciers melt? What kind of situation, what kind of life, what kind of new map awaits us in the near future? Today we will talk about this issue.

Due to global warming, the rate of melting of glaciers has increased dramatically. According to some scientists, in 80 years, the world will have changed dramatically and the world map will have been rewritten. If humans continue to use all current coal, oil and natural gas reserves, an increase in carbon dioxide emissions is inevitable. The increase in carbon dioxide in the atmosphere will cause the average temperature to rise to 27 degrees Celsius, compared with the current value of about 14 degrees Celsius. In many areas, temperatures will become horrific and many territories will be off limits to habitation.

At that time, the shape of the continent will change dramatically, many large cities will sink underwater, and North America will flood the east coast of New York, Washington, Boston, and all cities in Florida and the Gulf Coast, San Francisco, California Mountains The mounds will become islands, Cuba will almost disappear, and in South America the rivers of the Amazon in the north and Paraguay in the south will become bays, destroying Argentina's Buenos Aires coast and much of Paraguay.

While the mountainous areas will become coastal areas, Alexandria and Cairo in Africa will be completely submerged compared to other continents, but most of the continent will be uninhabited due to high temperatures, my country and Cambodia due to Most of the population is concentrated in coastal cities, which may suffer the greatest losses, and half of our country's territory may be engulfed by sea water. Scientists have long calculated that water from the glacier reserve would raise water levels in the world's oceans by 65 meters, just as the data predicts. To prevent tragedies from happening, we need to understand the complexities of the entire process and explore possible ways to influence the situation.

According to data, the volume of all ice on the earth can be melted into approximately 20 million cubic kilometers of water. If we added this to the volume of the world's oceans, this amount of water could flood most islands and significantly reduce the amount of land on Earth, and the entire picture of the world would change. The worst problems await small islands, coastal areas, and cities and countries below sea level. Large parts of Asia, China, Japan, Bangladesh, India and the UK will be submerged due to flooding. In Europe, parts of the Netherlands, Venice and Denmark will disappear completely underwater. Territories in North and South America, as well as parts of Australia where most of the continent's population lives, would be inundated.

Water will completely wipe Uruguay and Paraguay off the face of the earth, and Astrakhan, Kaliningrad, Vladivostok, Sochi, Arkhangelsk and St. Petersburg will be the first in Russia. Flooded city. Entire coastal areas will also be inundated. Africa suffered the least damage. But rising temperatures will make these areas uninhabitable. As for the Arctic, freed from the constraints of ice, it would essentially disappear. The continental terrain where the current ice sheet is located is below sea level, with a maximum depth of 2,780 meters. Even the Arctic mountains, hidden under a kilometer and a half of ice, can only remain underwater.

But there is also a more pessimistic view of the situation of melting glaciers. British mathematicians predict the Arctic will melt in 80 years. They argue that human attempts to simulate the climate to stop warming by reducing greenhouse gas emissions will not produce the desired results. Mathematicians have calculated that the allowable warming rate of 1.5 degrees under the Paris Agreement would cause the ice to melt completely within a few decades, even if all countries complied with regulations allowing the emission of carbon dioxide into the atmosphere!

Of course, the above-mentioned calculations by British scientists are mainly based on greenhouse gas theory and do not take into account other important factors that may affect the global warming process. However, not only are territories and agricultural lands threatened by total submergence, salt concentrations in the world's oceans will decrease and pH levels will change, which will lead to the extinction of most of the flora and fauna of the underwater world. As a result, mass die-offs of birds and animals will begin, which will lead to disruption of associated food chains.

This situation will lead to a food crisis, and famine will mainly occur in those countries and regions that have traditionally relied on the sea for their livelihoods.

Besides hunger, humanity faces other social problems such as mass migration due to loss of shelter and deterioration of physical and mental health. In fact, this is not only related to people's well-being, but also related to the existence of the entire human civilization. The very existence of human civilization is a problem. The most densely populated and developed areas of our country - Shanghai, Singapore and Beijing will be flooded, leaving only parts of sparsely populated mountainous areas. Most of India's coastal cities will also sink, and Cambodia will sink, leaving some islands. Cities, Sydney and Melbourne will sink, London will disappear from the face of the earth, the Gulf of Finland will reach Novgorod and Pskov.

The water levels of the Black Sea and the Caspian Sea will rise sharply along with the Aral Sea. The Caucasus will be separated from Asia and Crimea. It will no longer exist as a peninsula and become a real island. Everything will be Submerged, Astrakhan will go deep underwater. The melting of Antarctica's glaciers will bring about a series of adverse effects, leaving an archipelago of large and small islands in the end. Before all the ice melts, Atlantic ocean currents may also change as the oceans gradually thinn, and indeed the Earth's climate zones will change, as ocean currents carry cold water toward the equator and warm water toward the poles, i.e. , as fresh water continues to flow into the ocean, the Atlantic ocean currents will gradually change, and the melting of glaciers will bring traditionally cold countries and regions into a tropical climate.

As ice melts due to global warming, everything will change and natural disasters such as droughts and hurricanes will become more frequent. Fortunately, all this is decades in the future. I believe that as long as humans put it into practice, everything will change. What do you think? Welcome to leave your opinion!