Geography Education
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Supporting geography educators everywhere with current digital resources.
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Thirsty Yet? Eight Cities That Are Improbably Running out of Water

Thirsty Yet? Eight Cities That Are Improbably Running out of Water | Geography Education | Scoop.it
The amount of rainfall a place gets isn't the only factor in how much water is available to it. These major urban areas show how dire the coming global freshwater shortage could get.
Seth Dixon's insight:

Seen from space, this planet is a blue marble, a world where the surface is dominated by water.  The Pacific Ocean alone is nearly half of the surface area of our planet.  Add in polar ice caps and the rivers and lakes, we can see that water profoundly impacts Earth.  Yet most of that water is salt water (97%) and two-thirds of our non-salty water locked away in ice sheets (2% of the global water). Everything else, rivers, lakes, marshes, aquifers, and reservoirs represent that remaining 1% of the Earth's water supply--and that 1% of water is what sustains human settlements and allows for agricultural expansion.  The geography of this 1% is highly uneven and a huge water crisis can cause governments crumble--the fact that this precious resources has been wasted and polluted becomes more frustrating as water resources are being strained in so many places.  In this article, it  describes 8 major metro areas where water is being depleted rapidly -- Tokyo, Miami, London, Cairo, Sao Paulo, Beijing, Bangalore and Mexico City. 

 

Tags: urban, water, land use, megacities, urban ecology, consumption, environment, resources.

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Ken Feltman's curator insight, April 24, 2016 8:24 AM
Seth Dixon has another "uh oh!" article.
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Black Marble: The Earth at Night

Black Marble: The Earth at Night | Geography Education | Scoop.it
“Nothing tells us more about the spread of humans across the Earth than city lights.”...


"For three weeks spread out over April and October of this year, the Suomi NPP satellite (jointly of NASA and NOAA) scanned all the Earth's land as it appeared at night. Scientists then mapped the satellite's data -- 2.5 terabytes of it -- over an earlier Blue Marble image, transforming that picture's daytime blues, browns, and greens into a nightime palette of blues, blacks, and gold." 


This video is a great compliment to the classic Earth at Night composite image as well as the adjusted cartogram for population density.  


Questions to Ponder: What do these lights "tell us" about human geography?  What does the intensity of the lights indicate?

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Facebook connections map the world

Facebook connections map the world | Geography Education | Scoop.it
Facebook intern Paul Butler has created a detailed map of the world by mapping connections between people using the social network living in different cities.
Seth Dixon's insight:

The disconnected portions of the this map tell us as much about the world we live in as the highly illuminated ones. Might this be a version of the "Black Marble" image that would reasonate more with today's teenagers?  For the methods behind the creation of this map as well as a high resolution version of the map, see this post.


Tags: social media, map, visualization.

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Thomas C. Thompson's curator insight, April 27, 2013 8:25 PM

This is a picture of our world and the real way that we are connected in real time from Facebook. It's amazing! Share this everywhere!

Maegan Connor's curator insight, December 17, 2013 12:23 PM

This map amazes me because of just how big Facebook has become after starting as a small site for college kids in the U.S. to connect on.  Now it is one of the largest contributing factors to globalization as it allows people from various continents to connect to others with a simple Internet connection.  It has helped people of different cultures come together and as we saw in class, it helps spread word of different political happenings that regular news media tries to hide from us.  

It's also really interesting to see how China is completely off the grid and so is central and Saharan Africa because in terms of modern day globalization, they are not areas that participate in many global affairs and with the prominence Facebook holds in today's world, the parts of the world that are missing are much stranger to us in cultural terms.

L.Long's curator insight, February 16, 2014 4:26 AM

Global networks

 

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"The Most Amazing High Definition Image of Earth Ever," Says NASA

"The Most Amazing High Definition Image of Earth Ever," Says NASA | Geography Education | Scoop.it
NASA has released a new Blue Marble image, showing the United States of America. According to them, it's the "most amazing, highest resolution image of Earth ever." Blue Marble 2012 bests the 2010 edition and the original one.

 

Beautiful image...follow the link for a video of the image at a variety of scales as well as the specs and production that went into it.   There is an 8000 x 8000 pixel version as well as many lower resolution versions. 

 

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