We have written many times about how climate change is affecting our ocean. The threat to coastal cities is particularly related to the melting of glaciers. It is worth recalling a study from three years ago, according to which by 2100 the water level may rise by up to two meters. Scientists say that as a result of this phenomenon, the roof over their heads can lose up to 187 million people.
Climate Central has prepared an interactive map showing the changes that may await our world until 2050. It appears that some Polish cities – Gdańsk, Stegna or Elbląg – may experience coastal flooding during this time.
Soil collapse, which is associated with soil subsidence, has also been shown to be a problem. This phenomenon affects 44 of the 48 most populous coastal cities in the world. The land there is collapsing faster than the rising waters. Land subsidence is the result of, inter alia, fossil fuel extraction and groundwater pumping.
The team, led by Cheryl Tai of Nanyang Technological University in Singapore, analyzed dozens of cities monitored by satellite. Scientists assert that the proven areas make up a fifth of the world’s urban population. The study found that land is collapsing more quickly at sites in South and Southeast Asia. For example, in Tianjin, China and Ahmedabad, India, the earth collapsed by 20 mm per year.
The outlook for Ho Chi Minh City, Vietnam, is particularly bleakwhere water could reach 20 square kilometers by 2030. Brazil’s Rio de Janeiro could lose 2 square kilometers by then.
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