Science

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

Global warming and sea level rise is already a "fact", and sea levels are rising across the planet. However, after the sea level rise, the crisis for human beings is also increasing, because there are very many island countries and areas with low sea level around the world.

So it's not a good thing for people in those areas. If you follow the National Geographic magazine had produced a series of interactive maps, this could lead to a 66-meter rise in sea level after the global glaciers melt into the ocean.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

Then there could be a "reorganization" of the coastlines of the world's continents, so this is not good news indeed. We should know that many of the world's major cities and economically developed regions are located offshore.

So, this change will likely bring a complete transformation. However, for the warming of our own planet, although it is driving sea level rise in countries around the world, the impact is not yet to this extent, but continued warming will make it possible to reach completely sometime in the future.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

However, a new study points out that - at the end of this century - if mankind fails to stop the development of global warming, then there could be 5 countries disappearing, all of them will be affected by the huge changes in the oceans.

Because sea level rise is the trend. And what will be the impact on our country and what will happen? Let's take a look below.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

Global warming and sea level rise

For global warming, this is already an undeniable fact. Although we have said many times that we are still in an ice age from geological studies, the development of warming in the midst of the "Great Ice Age" is also a "coexistence" phenomenon, which we do not understand here.

And according to global warming data, in the middle of 2021, the average temperature of our planet is 1.11°C higher than the pre-industrial level (1850-1900 average), although there is what we call a "La Niña year" that can "mitigate the global warming trend ".

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

But, unfortunately, our planet still had one of the seven warmest years since complete meteorological observations were recorded. And, even for the last 20 years, the data are all 1.01°C higher.

So, there are still people who say that the earth is not warming, and that is necessarily wrong. And in the wake of global warming, sea levels are continuing to rise.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

According to data released by the United Nations, sea levels have risen between 15 centimeters and 25 centimeters since 1900. And the rate of rise is accelerating, with some of the tropical regions facing the most serious problems.

Although there are global calls for humans to reduce greenhouse gas emissions, plant more trees, etc., to reduce the warming of the planet. But it's clear that the Paris Agreement is just a piece of scrap paper. All are talking about doing it, but not many countries are seen to do it in a real sense.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

So, it has also led to the continued warming of our planet, with extremes of climate in record numbers. In 2022, the Northern Hemisphere is experiencing an "unusual" development of climate phenomena, whether it be heat, rainfall, or storm development. So, has it changed?

There are simply not many countries that do it realistically. Then the trend will continue, and it is expected that in the next five years, we may also exceed the "1.5 degree climate tipping point" for the first time, so time is running out for humans to change the Earth's climate.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

However, it is because of such a trend that our planet will probably face the disappearance of five countries in this century.

Sea level rise could wipe out 5 countries by the end of the century

We've said that sea level rise is the biggest crisis for low-lying, island nations. and

However, this seems to be happening a lot faster than we thought.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

According to a study cited by the United Nations Intergovernmental Panel on Climate Change, the oceans around islands in the Pacific and Indian Oceans could rise by nearly another meter by 2100, which would cause five countries to disappear, rendering their inhabitants uninhabitable and creating 600,000 stateless climate refugees.

Which 5 countries? They are Maldives, Tuvalu, Marshall Islands, Nauru and Kiribati.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

Sumudu Atapattu, a researcher from the University of Wisconsin-Madison, noted that this is an unprecedented impact. So it also illustrates the heightened sense of crisis under climate change.

Although many people may see that this nearly 1 meter of sea level rise does not seem like much.

But as we said, climate has a knock-on effect, and in addition to sea level rise, which itself is unchanged, ocean warming will also affect the intensity of the rise. So there is "differentiation".

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

And nearly 1 meter, it is also considered to be based on the known climate simulation instructions. Of course, if all areas of the globe stand to rise by 1 meter, then the space for change brought about may be different in different regions, for example: the Bay of Bengal, too, will likely be greatly affected.

So what will happen to our country if it rises by 1 meter?

As one of the sensitive regions for global warming, our country is one of the more sensitive regions, both in terms of the degree of warming and issues such as sea level rise.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

In 2022 that China released the meteorological "Blue Book" also clearly pointed out that China's 1951 to 2021, the annual average surface temperature is a significant upward trend, the warming rate of 0.26 ℃ / 10 years.

The last 20 years have been the warmest period in China since the beginning of the 20th century. In 2021, the average surface temperature in China was 0.97°C higher than the normal value, the highest since 1901.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

See? It's all hitting new highs, and ocean warming is accelerating, also hitting new highs, and China's coastal sea level change is generally fluctuating upward. 1980 to 2021, China's coastal sea level rise rate is 3.4 mm/year, higher than the global average for the same period.

In 2021, China's coastal sea level is 84 mm higher than the 1993-2011 average, the highest since 1980. See? Again, it is higher than the global level for the same period, the highest since 1980. Needless to say, the impact on our country may also be more obvious.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

So what will happen to our country at the end of this century if it rises by 1 meter? If it rises by 1 meter, the overall impact will actually be small.

From the surrounding areas of Bohai Bay, Liaoning Yingkou, Tianjin Binhai New Area, Yellow River Protection Zone and other impacts are present, there will be a part of inundation.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

The Yangtze River region, to the north is what we call Jiangsu, a little more, Jiangsu Lianyungang, Yancheng City was affected more, and for the Yangtze River Delta region, that is, Shanghai, there will be a part of the regional inundation.

Compared to Jiangsu, it looks a little better instead, and then there are several areas in Zhoushan, Zhejiang Province will be flooded.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

The southern region, mainly the Pearl River Delta, Guangdong Zhongshan, Zhuhai, Guangzhou, Jiangmen and other regions have been flooded, so the ripple effect is still there.

Sea level rise: 5 countries may disappear by the end of the century! What will happen to China if it rises by 1 meter?

But overall, it's a lot better than sea level rise that could make 5 countries disappear, the Pacific Ocean, and the Indian Ocean for these island nations.

So, all the effects of the crisis at sea level are present. That's why it shows that there is a global need to be proactive about climate.