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    Home»Tech»They will go underwater: 28 dense residential cities predict floods
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    They will go underwater: 28 dense residential cities predict floods

    May 10, 20254 Mins Read
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    Experts issued an emergency warning after they discovered that the 28 largest cities in the United States were plunging under the water. Scientists have discovered that dozens of the most populous cities in the United States are immersed in water and 34 million people living in injured areas.

    They will go underwater: 28 dense residential cities predict floods

    The researchers found that the exploitation of groundwater continuously for the needs of drinking alcohol and other goals are the most common cause of floods, although other factors operate in some places, daily notes. A study conducted by Colombian University showed that although coastal cities are at risk, some areas are sinking fastest, in fact, there is no access to the sea, such as Fort Urt and Dallas. But the Houston coastal is the fastest city in the country, nearly half of its territory plunges more than a fifth inch a year. In some places, the water is even faster – up to 2 inches per year. Dallas and Fort Urt are not too far, down about 0.16 and 0.2 inches per year, respectively, Daily Mail wrote. The study also noted the New York Airport La Guardia, the areas of Las Vegas, Washington and San Francisco, quickly decline.

    Nearly tens of millions of people living in these 28 cities and more than 60 % of the total population live in only eight cities: New York, Chicago, Los Angeles, Phoenix, Houston, Philadelphia, San Antonio and Dallas. The researchers noted that over the past 25 years, more than 90 major floods have occurred in these cities, and think that this is largely due to the fact that they are drowning.

    As cities continue to grow, we will see that more and more cities are expanding at the costs of the regions gradually decreasing, he commented that the leading author Leonard Okhenchen, a researcher at Lamont -der Earth Clombia. Over time, this subsidence can lead to the infrastructure load will exceed its safety limit, he added.

    Okhenchen and his colleagues used satellite data to draw subsidence cards with the accuracy of a millimeter in all US cities with a population of more than 600,000 people. They also analyzed the amount of underground water pumps in the wounded districts and linked this to the subsidence of the soil.

    Coastal cities, as prescribed, are more likely to be resolved due to the overall influence of underground water pumping and sea level, Daily Mail wrote. However, in many cities located at the depth of the country, such as Denver, Oklahoma-City and Nashville, the moderate settlement of the land is observed. These three cities sag about 0.04-0.08 inches per year. About one percent of the territory in 28 cities are undergoing subsidence, which can affect the most important infrastructure, such as buildings, roads and railways.

    In Brazil, the whole city walked underground

    Despite the fact that this ratio seems small, these areas are often located in the most populous areas of these cities, where there are 29,000 buildings. From this point of view, the most dangerous cities are San Antonio, where each 45 building has high risks of damage due to land subsidence, Austin, Fort Urt and Memphis.

    The researchers came to the conclusion that throughout the United States, and especially in the inner areas of cities, land subsidence was mainly due to underground water pumps.

    When water is extracted from hydrated layers, including saturated and non -supplemented sedimentary layers, the holes between the particles of the mines may be destroyed, the Daily Mail explained. According to the researchers, this leads to the seal of the lower layers of the water layer, leading to surface suction. In Texas, the situation became worse by drilling of oil and gas wells, they explained in their reports.

    Other factors play a role here. About 20,000 years ago, areas inside North America were covered with a giant layer of ice, because the Earth grew up along the edges. This bandage has disappeared for a long time, but some bulging places still exist, although they fall at a speed of 0.04-0.12 inches per year. According to researchers, this worsens the subsidence of the observed land in New York, Indianapolis, Nashville, Philadelphia, Denver, Chicago and Portland.

    A study conducted in 2023 also showed that the weight of buildings in densely populated areas could contribute to land subsidence. These researchers found that more than one million buildings in New York were so much forced to become an important factor in the city's settlement.

    Perhaps new construction plays a role. A recent study showed that some Miami buildings were partially sagged by the underground destruction caused by the construction of nearby buildings.

    The researchers called for cities to use data to develop strategies to minimize the consequences of land subsidence and flood risks.

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