It would have the sea level rise caused by climate change
Scientists at Columbia University in New York, USA analyzed the potential irreparable impact of rising sea levels caused by climate change in coastal cities, which account for 10% of the world's population.
After studying population estimates for the years 1990, 2000 and 2015 and differentiating settlements by population density, these researchers concluded that areas less than 10 metres above sea level are particularly vulnerable to floods and cyclone surges.
For example, 100% of the urban population of Guyana, Maldives, Belize and Suriname lives at a height of less than 10 metres above sea level, while in Thailand and Bahrain it reaches 81%.
In fact, 13% of the Earth's urban land is in low-lying coastal areas, and these localities grow faster than average: an average of 1.98% versus 1.62% for all urban centers between 2000 and 2015.
As the economies of almost all countries rely heavily on activity in their urban areas, this increase in vulnerability poses a risk to their economic development and growth.
These experts also emphasized that the largest numbers of people living in coastal areas are in countries with less capacity to prepare for or recover from climate-related crises.
Those responsible for this analysis concluded that urban growth needs to be directed towards less vulnerable areas to protect urban areas of the coast and its residents.
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