US NOAA data shows that sea level rise is rising rapidly!
Sea level rise, it can be said that like global warming, few people do not know, but not many people know what is going on, or what is currently developed!
To know that the rate of sea level rise, for most of the 20th century, was basically maintained at a rate of 1.4 mm / year, but by 2006 to 2015, the monitoring data showed that the sea level rise rate has reached 3.6 mm / year, which means that sea level is not only rising, but also showing a doubling growth trend.
The National Oceanic and Atmospheric Administration, known as NOAA, predicts that by the beginning of the next century, sea levels will rise by at least 0.3 meters from 2000. Meanwhile, the United Nations has a committee dedicated to climate change (IPCC), which estimates that sea levels will rise by 40 to 63 centimeters by 21,000.
Of course, there have been previous scientific studies that show that by 2100, 250 million people on all continents of the world will be directly affected by rising sea levels. Whether it is the realization of sea-level rise projected by the National Oceanic and Atmospheric Administration of the United States, or the realization of sea-level rise projected by the United Nations Intergovernmental Panel on Climate Change, it is bound to cause serious damage on a global scale, and such an impact will not only be "realized" in coastal areas.
Aside from the Pacific Islands, which countries and cities have been most affected? India's 27 million people will be at risk
It is clear that sea levels continue to rise, and those countries that are already low will bear the brunt of it, such as the Maldives, a South Asian country with an average altitude of only 1 meter, an archipelago country in the Indian Ocean consisting of more than a thousand small coral islands, with a population of only a few hundred thousand, and only 45 centimeters of sea level rise, which is enough to make the Maldives lose 77% of its land area.
Of course, as long as the sea level continues to rise, the population that survives on the Pacific islands will be seriously affected, so there have long been studies that before the end of this century, those who live on the Pacific islands and are no more than 10 kilometers away from the coastline of about 3 million people need to move from here to live elsewhere. Because before that, the 5 vegetation islands and reefs of the Solomon Islands had disappeared due to sea level rise, and 6 other islands had also experienced coastline decline.
One might think that even if sea levels do rise so much in these places, the number of people affected is actually not very large, because the population living on these Pacific islands is already small.
But how can the effects of rising sea levels not be affected by others? To be aware that tens of millions of people on the mainland also live in lower coastal areas, let's be more specific: by 2100, 27 million people in India and 32 million people in Bangladesh will be at risk because of rising sea levels.
In addition, the United States will not be spared the situation of rising sea levels, and the impact is still very large, not to mention that 2100 is so far away, just wait until 2050, a large area of American land may become unsuitable for human habitation, New York alone 426,000 people are threatened with survival. Compared to 50 years ago, the probability of flooding in multiple coastline areas in the United States has increased by 300 to 900 percent, making Florida the most flooded state.
Whether a city or country disappears depends on what factors depend on, apart from being related to the rate of sea level rise?
The rapid rise of sea level should indeed attract your attention, but there is no need to panic, why do you say so? Because scientists have said that in the long run, although countries and cities with low altitudes will be consumed by the ocean sooner or later, at least by the time 2100 comes, no country will completely disappear due to rising sea levels, but some cities will be at risk of being submerged because of low altitudes.
Let's take Jakarta, the capital of Indonesia, which has a population of about 10 million, which is also a super population city abroad, but it is also called "the fastest sinking city" by the BBC. That is to say, with the sea level continuing to rise, the city is still sinking at a rate of 5 to 10 centimeters per year, and Jakarta, which has suffered a double blow, is likely to suffer from partial submergence in 2050, so they are also building a new capital thousands of kilometers away.
See that? When a city might be submerged is not only related to the rate at which sea level rises itself, but also the problem of sinking in Jakarta. In some parts of Florida, there are even initiatives to elevate roads and homes in order to reduce the severity of the flood when it comes.
Put it this way, whether a city or country will disappear is not only affected by the rate of sea level rise, but also related to the strength of its problem-solving and preventive capabilities. Countries like the United States will invest in many coastal protection projects and then use experimental data to further improve. If a country captures instability, poverty and low-lying terrain, it will only take a few decades for sea levels to suffer.