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Geography in the classroom
Resources to support the NSW secondary Geography curriculum
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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 | Geography in the classroom | 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.


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

Perception!

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

Huge problem when combined with sea level rise

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

APHG-U7

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Comparing Urban Footprints

Comparing Urban Footprints | Geography in the classroom | 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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Amanda Morgan's curator insight, September 18, 12:49 PM

The comparison of urban footprints certainly puts a lot of factors into perspective.  Whenever I am in highly populated areas such as Atlanta and New York, I feel like the area is so densely populated. But shift over to Sao Paulo which is so much smaller than New York, but just as populated.

Jacob Crowell's curator insight, October 14, 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, 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. 

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The Rise of Megacities

The Rise of Megacities | Geography in the classroom | Scoop.it
By 2025, the developing world will be home to 29 megacities.

 

Through this interactive mapping feature with rich call-out boxes, the reader can explore the latest UN estimates and forecasts on the growth of megacities (urban areas with over 10 million residents).  These 'cities on steroids' have been growing tremendously since the 1950s and present a unique set of geographic challenges and opportunities for their residents. 

 

Tags: urban, megacities.


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Matt Mallinson's comment, November 19, 2012 10:27 AM
If that's what is predicted for 2025, how populated will our world be by 2050? Scary to think about.
Seth Dixon's curator insight, January 16, 2013 12:28 PM

Through this interactive mapping feature with rich call-out boxes, the reader can explore the latest UN estimates and forecasts on the growth of megacities (urban areas with over 10 million residents).  These 'cities on steroids' have been growing tremendously since the 1950s and present a unique set of geographic challenges and opportunities for their residents. 


Download the data yourself as a CSV file and your can import this into ArcGIS online and symbolize your map with any of the columns in the dataset.  


Tags: urban, megacities.


Peter Steffan's curator insight, October 9, 2013 5:00 PM

Very cool!

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Rooftop Farms

Rooftop Farms | Geography in the classroom | Scoop.it
Brooklyn Grange, believed to be the world's largest rooftop farm, is expanding to the Brooklyn Navy Yard.

 

Brooklyn Grange Farm is Expanding to a 45K Square Foot Rooftop in the Brooklyn Navy Yard.  This is a stunning example of urban agriculture designed to produce local food, even with limited spatial resources.


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Steve Westgate's comment, February 8, 2012 8:51 AM
Urban agriculture has been an excellent project to form community bonding in all the United States cities that participate. Production of the foods that are provided by urban agriculture could not feed the local population as a hole, but part of the harvests are usually donated to the local food banks for the needy. So many roof tops in our cities could be used for farming. Most of our abandoned properties could also be used for agriculture. My community has had and will have local growers, who will sell their produce rather cheap and give a portion to local shelters, food banks, and state run faculties.
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Primate Cities: Mexico City

http://geographyeducation.org/2014/05/05/primate-cities-mexico-city/


Via Seth Dixon
dilaycock's insight:

Seth Dixon, creator of this excellent resource, notes, "I put together this presentation, based primarily on my time researching in Mexico City (download the PPT file to access my notes for each slide).  The problems with primate cities are hardly unique to Mexico City; this additional BBC article bemoans Britain’s lack of a true second city, arguing that London’s shadow looms too large for sustained national development outside of the primate city."

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Jason Wilhelm's curator insight, May 22, 12:24 PM

The concept of a primate city has both benefits and drawbacks for the country in which it is located. The large population of the primate city draws new technology and foreign investment into the country. Unfortunately, the large population of the primate city also leads to population and brain drain from the surrounding regions which can damage the overall economic and intellectual status of the country. 

Sid McIntyre-DeLaMelena's curator insight, May 29, 12:45 PM

Primate Cities are furthered studied using Mexico as an example.

Primate cities affect movement by having a greater pull on migrants.

John Nieuwendyk's curator insight, October 6, 2:49 PM

The spatial population of Mexico City is densely packed. The south-west side of the city or the Western Sector zone features upscale, wealthy neighborhoods. The north and eastern sectors of the city are densely populated and are the poorer sectors of the city. It is interesting looking at the city from a top-down aerial view. One can see that the wealthier western sector’s spatial geography is spread out more so than the poorer sectors and features more vegetation, possibly due to an environmentally friendly irrigation system. 

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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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Lauren Stahowiak's curator insight, April 16, 5:16 PM

In megacities, such as Jakarta, urbanization brings about many problems for local residents. The areas are crowded and residents get little to no income. An Australian organization works to help the people of Jakarta by giving them advice,food and helping where necessary. With this help, families are able to keep their spirits higher and hope that their children will live better lives than the ways that they were brought up.

Joseph Thacker 's curator insight, April 18, 8:10 PM

Jakarta is the capitol of Indonesia and now has a population of over 28 million. Urbanization is bringing serious problems to Indonesia’s only mega city, such as poor access to clean water and housing, and overpopulation. Some people, including the young woman in this video are living with 16 or more people in one house. It seems the city is not providing enough affordable housing for its residents.

Tracy Galvin's curator insight, May 1, 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.

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For Mexico City, a Repurposed Landfill

For Mexico City, a Repurposed Landfill | Geography in the classroom | Scoop.it
Methane from a landfill will flow to a power plant, helping to keep the lights on in the city.

 

When Mexico City’s government shut down the giant Bordo Poniente landfill last December, officials announced that they had a full-blown plan for the site...the city aims to capture the methane gas produced by the landfill to fuel a power plant that could supply electricity to as many as 35,000 homes. 


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James Hobson's curator insight, September 28, 9:41 PM

(Central America topic 8)

This article bears striking resemblance to the situation unfolding just a few blocks from my home: Johnston's Central Landfill.

The main similarity is with the use of methane gas for electricity production. Not only is this  a 'green' form of energy (natural decomposition), but it helps to prevent the foul odor of methane gas from spreading to nearby cities and towns. Before upgrading methane pumps at the Central Landfill, my neighborhood smelled like a dumpster most days. Now the air is cleaner and clean electricity is being produced... "two birds, one stone." Hopefully other landfills will take these examples to meaning in some way.

Kaitlin Young's curator insight, December 14, 4:20 PM

Usually when a landfill becomes overloaded, it just gets shut down and left to rot. Mexico City is trying to do something new and ingenious with its massive landfill. Instead of closing off the land and letting it stay as reusable space, Mexico is hoping to develop a way to harness landfill gases in order to make electricity. If it is successful, it could prove to be a world-changing solution for other large, developing cities. It has the potential of lowering energy costs, creating jobs, and finding a purpose for land that would otherwise remain unusable for probably centuries. 

Jacob Crowell's curator insight, December 16, 7:58 AM

In class we discussed the numerous environmental issues that exist in Mexico City. This is a great way of turning a negative into a positive. On a larger scale, I think this is going to be the kind of solutions that every country will have to eventually find. Creative ways of using technology to turn harmful waste into energy is a great idea. Methane is a cleaner than coal and recycling lessens the burden on natural resources.

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Anatomy of a Smart City

Anatomy of a Smart City | Geography in the classroom | Scoop.it

The 19th century was a century of empires, 20th century was a century of nation states and the 21st century will be a century of cities...

 

This outstanding infographic (courtesy of postscapes.com) begins with some information about our current state of urbanization.

 

Did you know that 1.3 million people are moving to cities each week?! It then explains the need for smart cities and delves into what is required to establish these intelligent connected environments, how the smart city may take various forms in the developing worlds and what specific technologies are necessary to achieve such grand goals in practice.


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Eli Levine's curator insight, December 18, 10:45 AM

There is an evolution taking place where politics, policy, technology, the environment, and the economy all intersect. This movement towards technical, empirically driven local policy making could be our saving grace.This could be the future of government.

Russell R. Roberts, Jr.'s curator insight, December 19, 2:10 AM

A stunning infographic which predicts how urban living will change in this century.  Our age is truly becoming "a century of smart cities."  Exciting times lie ahead.  Aloha, Russ.

Paul Aneja - eTrends's curator insight, December 22, 6:51 PM

What do you think makes a smarter city?