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The world's megacities that are sinking 10 times faster than water levels are rising

The world's megacities that are sinking 10 times faster than water levels are rising | Human Geography is Everything! |
Scientists have issued a new warning to the world’s coastal megacities that the threat from subsiding land is a more immediate problem than rising sea levels caused by global warming.


A new paper from the Deltares Research Institute in the Netherlands published in April identified regions of the globe where the ground level is falling 10 times faster than water levels are rising - with human activity often to blame.

In Jakarta, Indonesia’s largest city, the population has grown from around half a million in the 1930s to just under 10 million today, with heavily populated areas dropping by as much as six and a half feet as groundwater is pumped up from the Earth to drink.

The same practice led to Tokyo’s ground level falling by two meters before new restrictions were introduced, and in Venice, this sort of extraction has only compounded the effects of natural subsidence caused by long-term geological processes.


Tags: coastal, climate change, urban, megacities, water, environment, urban ecology.

Via Seth Dixon
Adilson Camacho's curator insight, August 2, 2014 12:32 AM


Matt Evan Dobbie's curator insight, August 2, 2014 6:55 PM

Huge problem when combined with sea level rise

MsPerry's curator insight, August 12, 2014 6:53 PM


Rescooped by Scarpaci Human Geography from Geography Education!

NatGeo Feature: Megacities

NatGeo Feature: Megacities | Human Geography is Everything! |

"By 2030, two out of three people will live in an urban world, with most of the explosive growth occurring in developing countries. For a preview of the future, the last in the Challenges for Humanity series explores São Paulo, Brazil; Lagos, Nigeria; Bangkok, Thailand; and Hyderabad, India."

Via Seth Dixon
Elle Reagan's curator insight, May 26, 9:38 PM

I thought this article was good as it gave information on how the world as we know it is growing and cities are popping up everywhere. Developing countries are seeing a large increase in growth and with that comes the growth of cities. With this, more megacities will be born and hopefully the quality of life increases with life in cities.

L.Long's curator insight, August 28, 6:08 AM

mega cities

L.Long's curator insight, August 28, 6:09 AM

mega cities

Rescooped by Scarpaci Human Geography from AP Human Geography Education!

Flexible Urban Planning

mixed used train-tracks/market place...


I've used similar videos in my classes and students are usually quite shocked to see how a city like Bangkok, Thailand operates.  I've used this as a 'hook' for lessons of population growth, urbanization, economic development, sustainability, megacities and city planning. 

Via Seth Dixon, Steve Perkins
Kendra King's curator insight, April 13, 9:15 PM

On the one hand this disturbed me. All I kept thinking when I saw the people go back on the tracks is that they could easily be killed.In fact, I wonder how many accidents have ever occurred near this area. All it would take is some sort of malfunction on the train in which the horn wasn’t sounding to provide ample warning or someone gets in another person’s way so there isn’t enough time to close down the shop. On the other hand, this made me realize just how efficient a population could become at using space. Everything was timed so that the entire area moved out of the way without an issue. So rather than let any land go to waste, the area uses it despite the risk to its population. Though it really isn't like the population has a choice though. So in instances where there is such overpopulation, it is interesting to see how well the society can adapt to the phenomenon. I do wonder what would happen if the country becomes more developed and the population declines. Would this type of land continue in the future or be disband? I know that in our country there are many laws that would make this illegal, but our country also has the space avoid developing the land in such a manner. When comparing it to the laws of the United States, I would think the country would eventually drift away from this use of land when possible. However, now that I watch the video, I have a new appreciation for maximizing land and I hope that the efficient could continue. Just in a less scary manner. 

Lora Tortolani's curator insight, April 20, 2:51 PM

Talk about using every inch of space available to you.  I find this video crazy not only because of the safety hazards, but just how people seem to go about this like it is normal.  This would never take place in America!

Felix Ramos Jr.'s curator insight, May 7, 1:29 PM

An absolute amazing dynamic is seen in this video.  To say that Bangkok is trying to use most of its open space up would be an understatement.  In developed countries, you would not only never see this happen but you would not even see a thought of doing something like this.  There are violations every where you look.  

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The Growth of Megacities

The Growth of Megacities | Human Geography is Everything! |

"For the first time in human history, more of the world’s 6.8 billion people live in cities than in rural areas. That is an incredible demographic and geographic shift since 1950 when only 30 percent of the world’s 2.5 billion inhabitants lived in urban environments.


The world’s largest cities, particularly in developing countries, are growing at phenomenal rates. As a growing landless class is attracted by urban opportunities, meager as they might be, these cities’ populations are ballooning to incredible numbers.


A May 2010 Christian Science Monitor article on “megacities” predicted that by 2050, almost 70 percent of the world’s estimated 10 billion people—more than the number of people living today—will reside in urban areas. The social, economic and environmental problems associated with a predominantly urbanized population are considerably different from those of the mostly rural world population of the past."

Via Seth Dixon
Courtney Barrowman's curator insight, April 28, 2014 10:40 AM

unit 7

Whitney Souery's curator insight, May 28, 2014 6:48 PM

The majority of megacities are in the developing world, with the exception of places like New York and Tokyo, best showing how the face of the world is changing. Developing countries are on their paths to becoming major powers, such as Calkutta for example. As an enlarging city, more and more citizens are flocking to the abundance of jobs in the city which thus increases India's development as a result of the growing city and thus leads to a cycle of growth as demand for more jobs increases as the city grows. Megacities are thus a symbol of the developing world and can be used in human geography as symbols of development. 

L.Long's curator insight, August 28, 6:08 AM

mega cities

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Urbanization and Megacities: Jakarta

"This case study examines the challenges of human well-being and urbanization, especially in the megacity of Jakarta."

Via Seth Dixon
Tracy Galvin's curator insight, May 1, 2014 2:25 PM

It is nice to see an organization that is not just blindly giving resources to people in need but actually empowering them and training them to be able to get the things they need through work. The women in this story describe how they have learned to make and sell things in order to take care of their families and they describe how empowering that feels.

L.Long's curator insight, August 28, 6:11 AM

mega cities Jakarta

Mark Hathaway's curator insight, Today, 6:53 AM

Megacities are beginning to populate the entire globe. In the developing world, more and more megacities are beginning to form. Jakarta Indonesia is an example of a rising megacity. This rapid urbanization has placed a special burden on the resources and local economies of many developing nations. This areas are not prepared to deal with the rapid population growth associated with the development of a megacity. This strain placed on the local areas, will often lead to terrible living conditions for the lower classes of society. Sanitation will often become a major issue in many of these megacities. Large portions of the population will often lack a proper sanitation system. The lack of proper sanitation will lead to the onset of deadly diseases. The effects of rapid urbanization can be deadly, for those living in the pooper regions of society.