Chronique d'un pays où il ne se passe rien... ou presque !
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Chronique d'un pays où il ne se passe rien... ou presque !
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Rescooped by Daniel Denninger from Geography Education
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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 | Chronique d'un pays où il ne se passe rien... ou presque ! | Scoop.it
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.


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

Perception!

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

APHG-U7

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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."


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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, 2015 6:11 AM

mega cities Jakarta

Mark Hathaway's curator insight, November 28, 2015 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.

Rescooped by Daniel Denninger from Geography Education
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Comparing Urban Footprints

Comparing Urban Footprints | Chronique d'un pays où il ne se passe rien... ou presque ! | Scoop.it

"This is a series of infographics (or geo-infographics) created by Matthew Hartzell, a friend of mine that I met when we were both geography graduate students at Penn State in few years back..."


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Jacob Crowell's curator insight, October 14, 2014 3:25 PM

This is an interesting way to graph out the urban footprints of various cities from around the world. This also shows how the United States has a number of the largest urban centers in the world. Along the top, New York, Chicago, LA, and Miami are massive compared to cities like Hong Kong. This shows how in the United States there are massive amounts of urban growth. Even in China where their population is one of the worlds biggest, Hong Kong a major city only has 7.1 million. In the United States, for the past century cities have been growing and this graph shows that.

Samuel D'Amore's curator insight, December 14, 2014 6:40 PM

These visuals really help to show that the size of a city doesn't necessarily correspond with it's population. Many years ago the trend was the larger the city in turn it would posses a larger population than a physically smaller city. Today this no longer holds true, in fact many smaller cities vastly out populate large sprawling cities. Most of these mega-cities in Asia and Latin America are incredibly over build and densely packed surrounded by miles of slums. 

Edgar Manasseh Jr.'s curator insight, January 22, 2015 7:16 PM

Pretty cool.