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Manila in Philippines, the island's capital, is gradually sinking under the water

Manila in Philippines, the island's capital, is gradually sinking under the water

Philippines

last update:

7 months ago

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Problems

  • The reasons why Manila in the Philippines is gradually sinking into the water.

    In ten or twenty years coastal areas around Manila in Philippines, home to millions of people, will be permanently underwater, according to research by the University of the Philippines.
    In the last 50 years the sea level has increased more than 80 centimetres. 
    
    Manila is one of the most densely populated and fastest growing economic centres in the world. 
    As the land around Manila Bay sinks and the sea level rises, the flooding is spreading not only in the city, but also in the surrounding provinces.
    
    After each heavy rainfall, several areas of the capital flood. The traffic grind to a standstill and people wade through chest-high water.
    
    Homemade rafts are paddled through the streets. The inhabitants to have become used to the flooding, which usually subsides by the following day.
    
    The sea level rise which began in the 1960’s coincided with the industrialisation of the Philippines. 
    In the capital, where skyscrapers rose rapidly, houses and office buildings were built in flood prone areas, and are particularly vulnerable to the rising sea today. 
    
    A study by the World Bank describes how the ground is still sinking, even though the Government stopped pumping up groundwater for infrastructure projects decades ago. If the Government does not protect the coastline in the future, wading through waist-deep floods during Manila’s rainy season will become normal, scientists warn.
    
    The sprawling mangrove forests held vulnerable coastal soils in place, broke waves and buffered the shore from storms and provided habitats or thousands of species. 
    
    But today, fewer than 1,236 acres of mangrove forests remain, leaving this low-lying coastline of Manila Bay, one of the most vulnerable to typhoon storm surges and tides on the planet.  

Timelines

2020

In November, Manila was submerged by flood at the height of typhoon Ulysses (Vamco).

2011

Sitio Pariahan in the northern part of Metro Manila, the Philippines’ capital region, was submerged after Typhoon Nesat hit the country. 

2009

Typhoon Ketsana (Ondoy) struck the Philippines. It led to one of the worst floodings in Metro Manila and several provinces in Luzon. 

But during huge tropical storms the flooding does not subside so quickly. Typhoon Ketsana caused floods that were almost seven metres high. More than 80 per cent of Manila was under water, displacing around 300,000 people. 

The floodings caused 448 deaths in Metro Manila alone. Following the aftermath of Typhoon Ketsana, the city began to dredge its rivers and improve its drainage network. 

2003

Satellite monitoring has revealed that Bulacan and neighboring Pampanga Provinces have sunk by between 1 1/2 to 2 1/2 inches (4 to 6 centimeters) as clay beneath the provinces’ soils has compressed and stuck together when water is drawn out through wells.  

1995

Urban expansion and a complex matrix of fish ponds had shrunk the coast-sheltering forests to just 1,962 acres.

1990

The Department of Natural Resources (DENR) identifies 133,400 acres of mangrove forests that fringed Manila Bay at the end of the 19th century. By the early 1990s there were just 4,900 acres of those mangroves left. 

1960

Before the 1960s the sea level around Manila did not significantly increase, but from then on it rose steadily at a rate five times faster than the rest of the world.

1677

Manila has endured earthquake, notably which destroyed the stone and brick medieval city. 

1645

Manila has endured deadly earthquake. 

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