What are the seven cities at risk of being submerged, according to science

Buenos Aires, according to these experts, is sinking less than 1 millimeter a year: left under watch for future measurements

The climate change It advances year after year as we know the different consequences it leaves – and which we leave – along the way. As if it were a never-ending story, the levels of damage revealed by various scientific studies are getting wider and more complex. In this case, recent research work by Nanyang Technological Universityin Singapore, relieved 48 coastal cities The largest in the world – which concentrates 20% of the world’s population – and found disturbing results. According to these experts, at least Seven of these sweeteners Director Office exponentially more than sea ​​level.

TianjinIn China; Ho Chi Minhin Vietnam; Chittagongin Bangladesh; Ahmedabad, in India; Jakartain Indonesia, and Yangonin Myanmar, “experience a noticeable drowning faster than 20 mm (mm) per year‘, refers to the report. While Rio de JaneiroIn Brazil, they still don’t reach that number, but they warn about it 2030 About 2 kilometers from the city could be flooded if not captured safety measures.

In addition to the sweeteners mentioned above that aroused his concern, there are Other 37 Although there is no file risk close, stay in note For future studies. One of them is Buenos Aireswhich sank in the studied period a little less than 1 mm Nanyang scientists measured the coast’s elevation and sea levels between them 2014 and 2020.

Experts assumed that these sinking phenomena have the same thing Main reasons The extraction Ground water, oil and gas, as well as “pressure sediment occur naturally because of Weight Her own urban structures“, Like the buildings.

Tianjin, in China, is the city that has sunk the most in recent years
Tianjin, in China, is the city that has sunk the most in recent years

city Tianjinin China, sank 43 mm Annually between 2014 and 2020: What the study authors worry about most. The report seeks, according to them, evaluation and deepening Risks of climate change and sea level rise in order to “develop sustainable strategies” for mitigation.

Ho Chi Minh is the most populous city in Vietnam
Ho Chi Minh is the most populous city in Vietnam

city Ho Chi Minhin Vietnam, it sinks annually 43 mm — The same as Tianjin. “Sea level rise relative to local land elevation is what really matters to any coastal community,” they noted.

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Many of the regions studied are major cities built on a delta Flat and low riversshocks, exposing large populations and economic value to shocks. Thus, it is critical to consider these findings for the sustainable development of these regions,” the study authors noted.

Chittagong is the second most populous city in Bangladesh and is located on the banks of the Karnavuli River
Chittagong is the second most populous city in Bangladesh and is located on the banks of the Karnavuli River

Chittagonglocated in the eastern region of Bangladesh, is sinking 37 mm annually.

Infobae speak with Raul Montenegro An activist and environmental biologist, he analyzed the general findings of this study: “Since we have urban distribution Important in coastal areas, whatever happens with sea level will directly affect those areas. The collapse occurs, among other things, due to the weight of the city, which in itself is a logical phenomenon. The problem is that it’s combined with exposure to rising ocean levels.”

Yangon River, on the coast of the city that sinks 31 mm a year
Yangon River, on the coast of the city that sinks 31 mm a year

Yangon It is the largest city in Myanmar and it is sinking 31 mm In the year under the river that bears his name.

According to Montenegro, “The Scale Who have these problems Exceed In many measurements by volume, the odds of getting wet and going are enormous social costs“.

Jakarta is located on the Java Sea, the fourth most populous city in the world.
Jakarta is located on the Java Sea, the fourth most populous city in the world.

Jakarta It’s a capital Indonesia And she has more than 10 million dollars Population: Laundries 26 mm annually.

Second, Montenegro conducted a Historical review This is related to this problem. “Do Four thousand years invented Agriculture. From that moment on, a small group of people manage large amounts of surplus and first urban revolutions which they referred to focus The Population In certain sectors of the territory where they can get a large amount of energy for the maintenance of cities. In this context, the majority were located in coastal areas or near the mouth of rivers.”

Ahmedabad is a very busy tourist center in India
Ahmedabad is a very busy tourist center in India

AhmedabadIt is the seventh most populous city in India 23 mm annually along the river Sabermaty.

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Singapore experts warned in the report: “Many of these rapidly sinking coastal areas are sprawling megacities. There human factors Such as high demand for oil extraction, groundwater loading, and heavy-duty building structures Contribute to the subsidence of the earth“.

The oldest cities in Latin America, such as Rio de Janeiro, were founded in coastal areas
The oldest cities in Latin America, such as Rio de Janeiro, were founded in coastal areas

Rio de JaneiroOne of the most visited beaches in Brazil 2 km Under the sea for a year 2030.

“in the . area Latin America and the CaribbeanMontenegro explained that most of the large cities – especially the oldest ones – were located in coastal areas or in estuaries (near the mouth of the river).

Buenos Aires will be observed in the following measurements to verify that the sinking of the land is not a concern
Buenos Aires will be observed in the following measurements to verify that the sinking of the land is not a concern

Although there were no indications of concern in recent measurements, Buenos Aires sunk less than 1 millimeter per year and stayed in note For future studies.

For the research authors, it is necessary to “improve sustainable urban planning and future adaptation strategies in coastal cities.

Federico Gonzalez Shapurmember of the political sphere in Eco House Globalspeak with Infobae It delves into the consequences of climate change in the cities analyzed in the study. “The constant emission of greenhouse gases – on a steady rise since the Industrial Revolution – is a social and environmental indictment for the entire planet. If this is not addressed from a comprehensive perspective, in the face of this inequality, the latter will pay the costs of the former: sea level rise; melting rivers Glaciers. Floods. Pollution of soil, air and water; fires and more inequality.”

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Myrtle Frost

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