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The first to sink into the sea must be countries and regions with relatively low sea levels, such as the Maldives, and some island countries are already migrating.
At present, the global climate is deteriorating, with rising temperatures and frequent disasters. Antarctic glaciers continue to melt, and if this continues for a long time, sea levels will inevitably rise. If sea levels rise, island nations will be threatened and will likely be inundated as a result.
Japan has always been rumored to be completely submerged in a hundred years, so Japan is also very worried, will it really be the first country to sink into the sea at that time? The answer is definitely no, the island of Japan is a relatively large island country by land area.
There are globally measured data suggesting that the first country to sink into the sea will be TuvaluLocated in the South Pacific Ocean, it is composed of 9 atoll-shaped island groups, with a total population of more than 10,000 people and a land area of about 26 square kilometers, making it the second smallest island nation in the world after Nauru and the fourth smallest country in the world. In the 16 years from 1993 to 2009, Tuvalu's sea level rose by a total of centimeters, reducing its land area by 2 per cent. According to this figure, in 50 years, sea levels will rise by centimeters, and at least 60% of Tuvalu's land will sink completely.
This country is mainly due to the low altitude of the land and the lack of land, which makes the economic development very limited. Aware of the biggest crisis facing our country, Tuvalu has long been trying to combat sea level rise, but in 2001 Tuvalu's leaders announced a statement that ended in failure.
Although now human science and the technology to change nature have improved very muchBut we have not yet reached the level of ability to compete with nature, and if we try to force change, it will be a catastrophe with a greater threat, and all we can do is to help other countries within our means.
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It must be residents of coastal areas or places with low sea level.
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I think it's a relatively low altitude area because it's low altitude and it's relatively close to sea level.
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I think it's a lower altitude because it's very close to the sea level.
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Generally speaking, if you are the first to sink into the sea, it is Venice in Italy.
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I think the first ones to sink into the sea should be those lower places closer to the sea.
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This must be referring to some of the island cities, which should be the first to be unlucky.
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Tuvag is also an independent archipelago and is the most dangerous country facing rising sea levels.
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I think it's a ship sailing on the sea, or a nearby village.
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This should be one of those cities close to the sea, after all, it is close to danger.
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I think it's just those small islands that are surrounded by the sea, and that's a big possibility.
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Sea levels continue to rise, but the main cause is not melting glaciers.
However, sea level rise is not primarily due to melting glaciers. Wei Ke said that because the current global average temperature has only increased by degrees, the increase in temperature is limited. The main reason for the rise in sea level today is the expansion of the volume of seawater when it is heated.
As a result of the warming climate, the temperature increases from the surface of the sea to a depth of about 2 kilometers, causing the volume of the sea to expand. This causes about two-thirds of sea level rise, with only about three-thirds of sea level rise coming from melting snow and ice. However, as the melting of snow and ice increases in the future, its impact on sea level rise will increase.
Sea level rise is a small thing, and the rate of sea level rise is about 3 millimeters a year, and it will slowly increase. If we do not take action, it is estimated that by the end of the century, sea levels will rise by nearly 1 metre.
Don't think that this 1 meter is less, because when the sea level rises by 1 meter, if you encounter a typhoon or astronomical tide, the sea level will rise a lot, and the amount of water will increase sharply, and the impact will be very serious. And it can slowly erode the coastline, and the impact is also very serious.
Sea level rise has the greatest impact on coastal low-lying lands and islands. Therefore, in some international negotiations on climate change, many low-lying and small island states have formed an alliance, and they are the loudest and most anxious.
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It will cause serious impacts, it will cause higher and higher sea levels, it will destroy crops, it will damage the soil environment, it will destroy the home that human beings rely on for survival, and it may affect the life span of the earth.
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If sea levels continue to rise, nearly 70 percent of the world's coastal zone, especially the vast low-lying delta plains, will become a flooded country, where seawater can invade 20 to 50 kilometers or more. Many world-famous cities such as New York, London, Amsterdam, Venice, Sydney, Tokyo, Rio de Janeiro, Tianjin, Shanghai, Guangzhou and many more will be submerged. A number of low-lying island countries in the Pacific and Indian Oceans will be semi-submerged.
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It will affect the temperature of the earth, produce extreme weather, may affect the survival of human beings, and cause the death of a large number of organisms. Let the world heat up.
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Sea level rises.
The root cause is global warming.
Factors such as the warming and expansion of sea water caused by climate warming, and the melting of terrestrial glaciers and polar ice sheets have all contributed to the rise of sea level. There are regional differences in global sea level rise, and the western Pacific Ocean belongs to a region with a relatively large sea level rise rate, and China is located in this region along the Xiaoqi Sea, and the sea level rise rate is higher than the global average.
Sea level rise is also closely related to local land subsidence and changes in regional hydrometeorological elements. From 1980 to 2019, the sea temperature and temperature along the coast of China continued to rise, reaching the highest in the past 40 years in 2019. In addition, the accumulation of seawater onshore for a long time due to abnormal changes in the wind field is also one of the reasons for the local sea level rise, such as the Taiwan Strait in March 2019.
South of the Yangtze River estuary in April.
The south-coast was dominated by onshore winds, and the corresponding monthly average water increase was about 60 80 mm, which contributed to the anomalous sea level change in the month. Land subsidence will also cause relative sea level rise. In China, economically developed coastal cities such as Tianjin, Shanghai and Guangzhou are located in estuarine siltation plains, with soft geological structures, and land subsidence due to groundwater overexploitation and compaction of large buildings, with a large range of relative sea level rise.
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The causes of sea level rise are described below:
The root cause is global warming.
Sea level rise is a global phenomenon caused by global warming, melting polar glaciers, and thermal expansion of upper seawater. Studies show that global sea levels have risen by 10 to 20 centimeters in the last 100 years and will accelerate in the future. But the actual sea level change in a certain part of the world.
It is also affected by the local vertical movement of land – slow crustal rise and fall and local land subsidence, and the sum of global sea level rise and local land rise and fall is the relative sea level change in the region. Therefore, it is only meaningful to study the sea level rise in a certain area if it is related to the sea level rise.
Note: Sea level rise is a slow-onset natural disaster for human survival and economic development. It is precisely because it is slow-onset that people often do not pay attention to the fact that a few millimeters of socks per year does not pose a danger.
In fact, such disasters are cumulative and gradual. Combined with the effects of land subsidence in many coastal areas, a century of sea level and rise can reach 1 metre or even more. This is undoubtedly devastating for people in many places.
This is undoubtedly devastating for people in many places. And even now, it has brought harm to the people living in coastal areas. It has increased the frequency of catastrophic storm surges in coastal areas, intensified flooding, erosion of coastal lowlands and coasts, and coastal retreat.
Water pollution in coastal areas, salinization of farmland, increased tidal range, and strengthened wave action have weakened the capacity of coastal protective dikes, forcing designers to improve engineering design standards and increase project funding, which will also aggravate the seawater intrusion of estuariums, increase the difficulty of sewage discharge, and destroy the ecological balance.
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The root cause of sea level rise is global warming.
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