58:26
Megacities on the Edge
A megacity is usually defined as a metropolitan area with a total population in excess of ...
published: 19 Nov 2013
Megacities on the Edge
Megacities on the Edge
A megacity is usually defined as a metropolitan area with a total population in excess of 10 million people.[1] Some definitions also set a minimum level for population density (at least 2,000 persons/square km).[citation needed] A megacity can be a single metropolitan area or two or more metropolitan areas that converge. The terms conurbation, metropolis and metroplex are also applied to the latter. The terms "megapolis'" and megalopolis are sometimes used synonymously with megacity, though those terms denote a semi-continuous chain of large metropolitan cities.[citation needed] As of 2011, there are over 20 megacities in existence[2] -- with conurbations such as Mumbai,[3] Tokyo, Seoul, New York City, Mexico City and Karachi having populations in excess of 20 million inhabitants each. n 1800, only 3% of the world's population lived in cities, a figure that rose to 47% by the end of the twentieth century. In 1950, there were 83 cities with populations exceeding one million; by 2007, this number had risen to 468.[4] If the trend continues, the world's population as a whole will double every 45 years. The UN forecasts that today's urban population of 3.2 billion will rise to nearly 5 billion by 2030, when three out of five people will live in cities.[5] This increase will be most dramatic on the least-urbanized continents, Asia and Africa. Surveys and projections indicate that all urban growth over the next 25 years will be in developing countries.[6] One billion people, almost one-seventh of the world's population, now live in shanty towns.[7] In many poor countries overpopulated slums exhibit high rates of disease due to unsanitary conditions, malnutrition, and lack of basic health care.[8] By 2030, over 2 billion people in the world will be living in slums.[9] Over 90% of the urban population of Ethiopia, Malawi and Uganda, three of the world's most rural countries, already live in slums. By 2025, according to the Far Eastern Economic Review, Asia alone will have at least 10 megacities, including Mumbai, India (33 million), Shanghai, China (27 million), Karachi, Pakistan (26.5 million), Dhaka, Bangladesh (26 million) and Jakarta, Indonesia (24.9 million people).[10] Lagos, Nigeria has grown from 300,000 in 1950 to an estimated 12.5 million today, and the Nigerian government estimates that the city will have expanded to 25 million residents by 2015.[11] Lahore, Pakistan will also be a megacity in 2025.[- published: 19 Nov 2013
- views: 0
46:04
National Geographic Documentary - Mega Cities - Hong Kong
National Geographic Documentary - Mega Cities - Hong Kong Megacities: Hong Kong - This epi...
published: 03 Jul 2013
author: Spencer Campbell
National Geographic Documentary - Mega Cities - Hong Kong
National Geographic Documentary - Mega Cities - Hong Kong
National Geographic Documentary - Mega Cities - Hong Kong Megacities: Hong Kong - This episode shows how a small city like Hong Kong accomplished such immens...- published: 03 Jul 2013
- views: 91
- author: Spencer Campbell
46:44
Nat geo megacities - Mumbai,India - Gate way of India - World's Megacities
nat geo megacities - Mumbai,India...
published: 04 Jul 2013
Nat geo megacities - Mumbai,India - Gate way of India - World's Megacities
Nat geo megacities - Mumbai,India - Gate way of India - World's Megacities
nat geo megacities - Mumbai,India- published: 04 Jul 2013
- views: 16141
51:24
MEGACITIES London || National Geographic [Full Documentary] (new) HD [full documentary]
A documentary on London, one of the worlds megacities. A National Geographic presentation....
published: 18 Jun 2014
MEGACITIES London || National Geographic [Full Documentary] (new) HD [full documentary]
MEGACITIES London || National Geographic [Full Documentary] (new) HD [full documentary]
A documentary on London, one of the worlds megacities. A National Geographic presentation. All rights belong to the respective owner. Video attribution is i.. New York City - MegaCities (Documentary) Megacities takes a revolutionary look at the places where most of us live: the modern Metropolis. Megacities focuses. documentary, documentaries, full documentary, history documentary, documentary bbc, history channel documentary, documentary history channel, national geogra. bbc documentary,bbc,national geographic,documentary,national geographic documentary,Structure,documentaries, documentary films, documentaries discovery chann.- published: 18 Jun 2014
- views: 30
47:01
New York City MegaCities 720p Documentary & Life Discovery HD
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published: 17 May 2014
New York City MegaCities 720p Documentary & Life Discovery HD
New York City MegaCities 720p Documentary & Life Discovery HD
We share information only for educational purposes Subscribe & Join us : http://www.youtube.com/user/LifeDiscoveryDocu?sub_confirmation=1 Don't Forget To LIKE this video!- published: 17 May 2014
- views: 17
3:12
The top 10 biggest megacities in the world
The top 10 biggest megacities in the world as of March 2014...
published: 02 Mar 2014
The top 10 biggest megacities in the world
The top 10 biggest megacities in the world
The top 10 biggest megacities in the world as of March 2014- published: 02 Mar 2014
- views: 22
46:05
Travel Documentary: Mexico City - Mega Cities
Travel Documentary: Mexico City - Mega Cities
It's the world's biggest city. It sprawls a...
published: 14 Jun 2014
Travel Documentary: Mexico City - Mega Cities
Travel Documentary: Mexico City - Mega Cities
Travel Documentary: Mexico City - Mega Cities It's the world's biggest city. It sprawls across more than 1,400 square kilometers. But for the 18 million people who live here, it's not just another metropolis. Mexico City is ground zero. This Mega-city violates the first rule of real estate: location. On one side: one of the world's most earthquake-prone hotspots. On the other: one of the world's most active volcanoes. And beneath their feet - a shaky foundation of landfill. To Mother Nature, Mexico City is one big target. And any moment, the Big One could hit. But against the most destructive force of nature, the city is tapping the power of science. From subways to freeways, Mexico City is harnessing cutting-edge technology to build in safety. Towering over the city is Latin America's tallest skyscraper - built to ride out an earthquake on giant shock absorbers. Most of all, the city is now armed with a slender line of defense: an earthquake detection system, built to give the city a one-minute warning before a quake arrives. Because today, the question isn't if another earthquake will hit - but when. Tag to search: travel documentary, documentary, history channel documentary, national geographic documentary, bbc documentary, time travel, discovery channel documentary, documentary films, documentaries, documentary bbc, travel, bbc documentary 2013, full documentary, travel channel, travel trailer,- published: 14 Jun 2014
- views: 1
9:34
Megacities - São Paulo (Part 1 of 6)
More than 10 million people live in São Paulo and every day, they generate 14000 tons of g...
published: 20 Apr 2009
author: Cecilia Rocha
Megacities - São Paulo (Part 1 of 6)
Megacities - São Paulo (Part 1 of 6)
More than 10 million people live in São Paulo and every day, they generate 14000 tons of garbage. But São Paulo is undergoing a green revolution. Follow one...- published: 20 Apr 2009
- views: 45148
- author: Cecilia Rocha
46:04
Hong Kong - Megacities (Documentary)
Hong Kong - Megacities (Documentary)
A peninsula bounded by more than 200 islands - only ...
published: 07 Jul 2014
Hong Kong - Megacities (Documentary)
Hong Kong - Megacities (Documentary)
Hong Kong - Megacities (Documentary) A peninsula bounded by more than 200 islands - only a handful of them inhabited, Hong Kong is the most densely populated urban region on the planet. In the recent past it has been rocked by economic and financial upheaval. Yet it has come through with some of the most high-tech, counterfeit-proof currency in the world, as well as some of the most complex bank building structures. Hong Kong has more billionaires per capita than anyplace on earth. This episode shows how such a small city accomplished such immense technological feats. The journey begins inside the printing facilities of Hong Kong Printing Limited and follows the currency to the Big 3 banks in Hong Kong, before it is then circulated through the economy.- published: 07 Jul 2014
- views: 1
7:41
Megacities Reflect Growing Urbanization Trend
Read the Transcript: http://to.pbs.org/b6sR86 The capital of the South Asian country Bangl...
published: 09 Sep 2010
author: MacNeil Lehrer
Megacities Reflect Growing Urbanization Trend
Megacities Reflect Growing Urbanization Trend
Read the Transcript: http://to.pbs.org/b6sR86 The capital of the South Asian country Bangladesh, Dhaka, has a population that is booming. However, it stands ...- published: 09 Sep 2010
- views: 19350
- author: MacNeil Lehrer
24:31
future megacities - The IGNIS Project (HD) (3D)
IGNIS is a research and demonstration project of the German Federal Ministry of Education ...
published: 28 Mar 2012
author: marcusmangeot
future megacities - The IGNIS Project (HD) (3D)
future megacities - The IGNIS Project (HD) (3D)
IGNIS is a research and demonstration project of the German Federal Ministry of Education and Research (BMBF) under the research program "Research for the Su...- published: 28 Mar 2012
- views: 1217
- author: marcusmangeot
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7:07
Megacities - London
This video features the world's busiest international airspace, HEATHROW.....a wonderful s...
published: 17 Dec 2008
author: chattokhan
Megacities - London
Megacities - London
This video features the world's busiest international airspace, HEATHROW.....a wonderful system that keeps this megacity's airspace work smoothly and perfect...- published: 17 Dec 2008
- views: 41123
- author: chattokhan
45:54
London Mega Cities - National Geographic Documentary
London Mega Cities - National Geographic Documentary...
published: 13 Oct 2013
London Mega Cities - National Geographic Documentary
London Mega Cities - National Geographic Documentary
London Mega Cities - National Geographic Documentary- published: 13 Oct 2013
- views: 14
46:57
[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary
[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary
[NEW Documen...
published: 05 Jul 2014
[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary
[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary
[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary [NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary[NEW Documentary 2014] Paris - Megacities Documentary - NEW Full Documentary- published: 05 Jul 2014
- views: 53