Affected by the extreme high temperature in the northern hemisphere this year, the rate of warming in the Arctic is also getting faster and faster. According to data from the Finnish Meteorological Institute: in the past 40 years, the rate of warming in the Arctic has been four times the world average, which also means that , the disappearance of Arctic glaciers is accelerating.

For example, under the continuous high temperature in Europe, the melting of Alpine glaciers is accelerating. Researches believe that about 750 Alpine glaciers will melt and disappear within a maximum of 30 years. Of course, the remaining glaciers will not be spared. It just disappears sooner or later.

In addition, according to the British "Nature" journal: In 2500, that is, more than 400 years later, the global sea level will rise by at least 2 meters to 5 meters. What is the concept? Simply put, the human homeland is in jeopardy.

So why is the planet warming faster?

The first reason is because human beings have not gradually reduced carbon emissions. On the contrary, in terms of global energy consumption last year, carbon emissions have reached a new high. These will make the earth's atmosphere continue to accumulate greenhouse gases. Due to the high concentration , causing the earth to be unable to carry out climate regulation, the abnormal atmospheric circulation will occur, and the extreme weather on the earth will become more and more. For example, the high temperature in the northern hemisphere this summer is caused by this reason.

The second reason is because the earth itself revolves around the sun, and the sun, as a yellow dwarf star, in its 10 billion years of life, through continuous internal nuclear fusion, itself is a process of continuous heating, the sun is getting more and more Heat, the earth receives more and more heat, and naturally, interacting with the greenhouse gases emitted by humans, the rate of earth warming will naturally become faster.

And because the heating situation on the earth itself is not uniform, for example, the polar regions are the coldest regions on the earth because they receive less heat radiation. However, when the earth warms, they warm up. The speed will be much faster than expected.

This is because when there is an abnormality in the atmospheric circulation, more and more warm air will be continuously transported to the polar regions, thereby continuously warming the polar regions, accelerating the melting rate of glaciers, and causing a "great reversal of the polar climate". ".

Therefore, scientists are worried that if all the two-level glaciers melt in the future, then when the earth's land is gradually submerged, it may be time for human civilization to say goodbye.

So, if the sea level really rises by 5 meters in 400 years, what will the earth look like?

Although the Industrial Revolution had begun as early as the mid-18th century, human beings realized that the earth's climate had undergone unusual changes, but it was already a matter of the 20th century. Especially after the end of the 20th century, humans discovered that the climate crisis was approaching.

For example, in the past 30 years, the global sea level has risen by 10.1 centimeters, and after entering the 21st century, the rate of sea level rise has accelerated significantly.

Look at a set of comparative data: 100 years ago, the rate of global sea level rise was about 1.5 millimeters per year, and by the end of the 20th century, it became 2.5 millimeters per year, and the current situation has increased to 3.9 millimeters per year. Maybe you will say that a few millimeters are not worth mentioning, but don't forget, the speed is getting faster and faster, and it is not sure from which year it will increase in "centimeters" or even "meters" every year. , until all land is submerged.

According to NASA's simulation data: for every 2.5 cm of sea level rise, the coastline will lose 2.5 meters, which also means that in the past 30 years, the coastline has lost about 10 meters, which is also the cause of frequent coastal flooding problems. where.

In about 280 years, that is, around 2300, the global sea level is expected to rise by 1-3 meters. Of course, some places on the earth will be submerged at this time, but for humans, the problem is not too big, Until 2500, the global sea level will rise by up to 5 meters, and by that time, many people will be homeless.

Take China as an example, according to the simulated image, in 2500, Jiangsu, Shanghai and other areas in southern China will be covered by sea water one after another, and if the sea level rises by 20 meters, the northern part of China will also be affected until the sea level rises. When it reaches 50 meters, Liaoning in northeast China will also be submerged by sea water.

Of course, at that time, the coastlines around the world will undergo great changes, and most coastal cities and offshore cities will also become "underwater cities", unable to continue to provide shelter for humans.

Therefore, it seems that the current problem is not serious, but in fact there is not much time left for human beings. British researchers pointed out that if human beings cannot achieve global carbon neutrality by 2100 in accordance with the Paris Agreement, Then, everything we worry about will happen in the future.

Therefore, it is imperative to take action as soon as possible to find ways to reduce greenhouse gas emissions as soon as possible and prevent global warming from continuing. Friends, do you think human beings can do it?