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Sustaining Seven Billion People

Sustaining Seven Billion People | ApocalypseSurvival | Scoop.it

"With seven billion people now living on Earth, the ever growing demand is putting unprecedented pressure on global resources—especially forests, water, and food. How can Earth’s resources be managed best to support so many people? One key is tracking the sum of what is available, and perhaps nothing is better suited to that task than satellites."

 


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Daniel LaLiberte's curator insight, July 6, 9:09 AM

Such studies of the agriculture around the world are essential. The way we are doing agriculture to support seven billion people now, peaking at 9-10 billion in another 60 years, it is clear that we are putting severe strains on the environment.  But we have grown lazy, and we are doing it all wrong.

 

We CAN drastically reduce the amount of meat we consume, and thus quickly reduce the amount of arable land we need.  We CAN grow plants in ways that actually sequester more carbon and improve the soil it over time rather than erode and degrade.  And we CAN in fact grow all the food we need in the space we live in, thus enabling us to recycle all the water used as well, which is mostly just lost in evaporation. 

Tom Cockburn's curator insight, July 13, 2:52 AM

Vital debate for the future

MsPerry's curator insight, August 12, 4:44 PM

APHG-U2

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Guide to Earth Explorer for Landsat 8

Guide to Earth Explorer for Landsat 8 | ApocalypseSurvival | Scoop.it

The Landsat Data Continuity Mission is now Landsat 8, and that means images are now public (woohoo!). NASA handed control of the satellite to the USGS earlier this year (May 30, 2013), and calibrated imagery is available through the Earth Explorer. Unfortunately, the Earth Explorer interface is a bit of a pain, so I’ve put together a guide to make it easier.


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Seth Dixon's curator insight, November 7, 2013 10:32 AM

If you have been afraid to download remotely sensed images, this is a very-user friendly, step-by-step guide on how to download Landsat 8 data (and many other geospatial datasets)  using Earth Explorer from USGS.  


Tagsremote sensing, geospatial.

Sharrock's curator insight, November 7, 2013 10:36 AM

Looks like a cool tool for mapping activities.

Chris Cividino's curator insight, November 7, 2013 9:09 PM

The Landsat program is an essential tool for geographers when they are studying GIS. Without this data, Google Earth and many of the other mapping programs we love so much would not be possible.

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Map


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Luis Aguilar Cruz's curator insight, July 1, 2013 11:50 PM

Bienvenue à l'expérience map

ethne staniland's curator insight, July 3, 2013 1:57 PM

very good

Justin McCullough's curator insight, December 12, 2013 10:29 AM

While technology does has its pros it also comes with its cons. GPS batteries can die; the map on the screen may be unreadable due to size, the GPS itself could break if not handled properly. When it comes to maps, it is durable and legible in any position. However, I can not read a map while driving my car to a certain place. It is rather difficult to find a place when i'm in unfamiliar territory. In this case the GPS is able to direct me to where i need to be. If handled properly, the GPS is, at least in my opinion, better than the map. However, it is nice to keep and extra map in the glove compartment, just in case. 

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Astrobleme

Astrobleme | ApocalypseSurvival | Scoop.it

"Lake Manicouagan lies in an astrobleme in central Quebec covering an area of approximately 1206 square miles—an area half the size of Delaware. An astrobleme is a scar left on the Earth’s surface from an impact of a meteorite. Lake Manicouagan is the result of one of the largest identified asteroid or comet impacts on Earth. In the middle of the lake, on Rene-Levasseur Island, Mount Babel rises 3,123 feet into the air.

 

Lake Manicouagan is thought to have formed about 212 million years ago plus or minus 4 million years.  This happened when an approximately 3.1 mile-diameter asteroid crashed into Earth toward the end of the Triassic period. Some scientists speculate that this impact may have been responsible for the mass extinction that wiped out more than half of all living species."


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Al Picozzi's curator insight, September 18, 2013 5:33 PM

This amazing picture shows how vulnerable the earth is to space born hazards.  This 3.1 mile-diameter asteroid might have caused 1/2 the living species on the earth at that time, 212 million years or so ago, to become extinct.  Man has the abilty to adapt to changes to the environment, unlike the dinosaurs.  The question is though do we have the ability to adapt to an event of this magnitude?  Hopefully we will not have to test out this question.

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NOVA: Earth From Space

NOVA: Earth From Space | ApocalypseSurvival | Scoop.it
Detailed satellite images reveal the web of connections that sustain life on Earth.

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Seth Dixon's curator insight, February 17, 2013 1:34 PM

"Earth From Space is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. Produced in extensive consultation with NASA scientists, NOVA takes data from earth-observing satellites and transforms it into dazzling visual sequences, each one exposing the intricate and surprising web of forces that sustains life on earth."


This documentary shows something interesting for the physical geographer, human geographers, and geospatial technology specialists.  In other words, this touches on just about all things geographic (with cool images!).  The overarching theme is that so many things in this world that we wouldn't imagine are actually interconnected with excellent examples. 


Tags: remote sensing, geospatial, unit 1 Geoprinciples, physical.

Kenneth Holzman's comment, February 17, 2013 4:37 PM
Thanks so much for this link! I'd completely missed this on PBS, and it is EXACTLY the kind of video I'm trying to get my AP Human Geography students to watch right now. This is getting shared with ALL my kids ASAP. :-)
dilaycock's comment, February 18, 2013 1:02 PM
I just love that Scoop.it allows resources to be shared so easily, and in a manner that is so accessible to students everywhere. Thanks Kenneth.
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Remote Sensing and Land Cover Change

Remote Sensing and Land Cover Change | ApocalypseSurvival | Scoop.it

By moving the slider, the user can compare 1990 false-color Landsat views (left) with recent true-color imagery (right). Humans are increasingly transforming Earth’s surface—through direct activities such as farming, mining, and building, and indirectly by altering its climate.


This interactive feature includes 12 places that have experienced significant change since 1990.  This is an user-friendly way to compare remote sensing images over time.  Pictured above is the Aral Sea, which is and under-the-radar environmental catastrophe in Central Asia that has its roots in the Soviet era's (mis)management policies.  

 

Tags: remote sensing, land use, environment, geospatial, environment modify, esri, unit 1 Geoprinciples, zbestofzbest.


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Luke Walker's curator insight, October 23, 2013 8:14 PM

See how much the Aral Sea has changed due to the impact of humans on their environment for yourself. Drag the slider tool to see a before and after. Reference your textbook (p61) for the whole story.

Amy Marques's curator insight, April 24, 9:46 AM

This map is a true testament to the people who believe human activity does not affect the earth. Humans have been transforming Earth’s surface for years, through direct activities such as farming, mining, and building, and indirectly by altering its climate. Much of the transformation taking place in the Aral sea leads to its connection to the Soviet era and their lack of understanding of the environment. This mismanagement of the Aral Sea is leading to a lack of water for the people who live in Central Asia.

Jess Deady's curator insight, May 4, 7:30 AM

The colors seen in photographs and images like this is because of the equipment used. Sometimes the quality of the equipment makes the pictures look different than they actually are. This basin has dried up over time and its surface has signs of significant change.

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Spatial Navigation Before GPS

Spatial Navigation Before GPS | ApocalypseSurvival | Scoop.it

"Giant 70-foot concrete arrows that point your way across the country, left behind by a forgotten age of US mail delivery.  Long before the days of radio (and those convenient little smartphone applications), the US Postal service began a cross-country air mail service using army war surplus planes from World War I.  The federal government funded enormous concrete arrows to be built every 10 miles or so along established airmail routes they were each built alongside a 50 foot tall tower with a rotating gas-powered light. These airway beacons are said to have been visible from a distance of 10 miles high."


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Giovanni Sonego's curator insight, December 15, 2013 10:49 AM

Adesso sembra incredibile che si usasse un sistema simile per guidare la posta aerea. Forse a quei tempi sembrava normale. 

Giovanni Sonego's curator insight, December 15, 2013 10:49 AM

Adesso sembra incredibile che si usasse un sistema simile per guidare la posta aerea. Forse a quei tempi sembrava normale. 

Steven Flis's curator insight, December 16, 2013 12:14 AM

I love articles like this one where they talk about the collide of different times. This article speaks of huge concrete arrows which were left from 1930's air mail routes. sadly most of the towers that were paired with the arrows have been dismantled but still really cool that these directional arrows from the past can still be found almost 90 years later.

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GPS Astray: Lost in Death Valley

GPS Astray: Lost in Death Valley | ApocalypseSurvival | Scoop.it

"Three women’s Death Valley day trip soured after their GPS led them to the edge of survival."


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Mike Carney's curator insight, September 30, 2013 1:48 PM

GPS devices are very useful tools, but if you don't know how to use them properly they can be very frustrating and sometimes can get you into trouble. On the surface a GPS seems like a pretty fool-proof navigation device, but that's giving people way too much credit. A lot of (older) people can have a hard time following them. Take my mother-in-law for example, she once got lost for a half hour on the ten minute drive from my house to the highway. Somehow she missed the ONE turn and apparently didn't understand how to make a U-turn. People generally go astray if they fail to update their GPS, don't know how to configure their settings properly, or follow the GPS blindly. People often forget that they can just use the GPS as a map and figure out their own routes when the GPS is being wonky. Its also a good idea to keep real maps in your car so you don't have to rely soly on the GPS. The women from the video were dealing with a GPS that was following inaccurate and outdated information. At a time like this its a good idea to pull over and get out the map rather than drive in circles until you run out of gas.

 

Ana Cristina Gil's curator insight, October 12, 2013 12:43 PM

       Is not always the best idea to only rely on you GPS when traveling, best thing to do is to get and updated maps.  Is always good to get information on where you are going, how long are you going to be there? So you can get enough supplies like food, water, clothes etc.  Also are you making other stops along the road? Let someone know where you going therefore; if something happened to you they know where to look for you, once again don’t always trust on electronic. Prepared AHEAD!!

Justin McCullough's curator insight, December 12, 2013 10:21 AM

Although I have grown up around technology, I've always been a little skeptical about its reliability. It is a good thing to have a GPS, but we should not rely solely upon it. Relying solely upon technolgy is not as good as it sounds. In some cases the GPS could be wrong and in instances such as these we need to be able to think for ourselves. Not having this ability is a dangerous situation. 

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Surging Elbe in Wittenberg

Surging Elbe in Wittenberg | ApocalypseSurvival | Scoop.it
Rising waters spilled onto flood plains and into cities across Germany. Central Europe has endured its worst flooding since medieval times.

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Seth Dixon's curator insight, June 12, 2013 11:25 AM

If you having been following the news lately, central European countries such as Germany and Poland are experiencing major flooding right now.  Compare this image above to one where the Elbe isn't flooding and you'll quickly be able to visualize extent of the flooding.


Tags: Germany, remote sensing, disasters, environment, geospatial.

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NASA Satellites Find Freshwater Losses in Middle East

NASA Satellites Find Freshwater Losses in Middle East | ApocalypseSurvival | Scoop.it
A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade.

 

"[This] data show an alarming rate of decrease in total water storage in the Tigris and Euphrates river basins, which currently have the second fastest rate of groundwater storage loss on Earth, after India," said Jay Famiglietti, principal investigator of the study and a hydrologist and professor at UC Irvine. "The rate was especially striking after the 2007 drought. Meanwhile, demand for freshwater continues to rise, and the region does not coordinate its water management because of different interpretations of international laws."

 

Tags: water, environment, consumption, resources, environment depend, Middle East, Iraq.


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Seth Dixon's curator insight, February 24, 2013 7:00 PM

This is a perfect example of geospatial technologies can lead to a better understanding of how the Earth's physical systems are changing because of human geography.  Teaching geography is about showing how these systems are interconnected.   

Elizabeth Bitgood's curator insight, March 19, 6:24 AM

Water is a big issue in an arid area.  The fact that we can measure the amount of groundwater present in an area with a satellite is amazing to me.  The issue of water rights and control in this region will someday over take that of oil rights and use in my opinion.  Once people get used to free flowing water to use on demand it will cause problems politically when these sources of ground water inevitably dry up.

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Where Does Your Water Come From?

Where Does Your Water Come From? | ApocalypseSurvival | Scoop.it

This interactive map documents where 443 million people around the world get there water (although the United States data is by far the most extensive).  Most people can't answer this question.  A recent poll by The Nature Conservancy discoverd that 77% of Americans (not on private well water) don't know where their water comes from, they just drink it.  This link has videos, infographics and suggestions to promote cleaner water.  This is also a fabulous example of an embedded map using ArcGIS Online to share geospatial data with a wider audience.  

 

Tags: GIS, water, fluvial, environment, ESRI, pollution, development, consumption, resources, mapping, environment depend, cartography, geospatial. 


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Nic Hardisty's comment, October 15, 2012 6:01 AM
I was definitely unaware of where my drinking water came from. This is nice, user-friendly map... Hopefully it gets updated regularly, as it will be interesting to see how these sources change over time.
Bonnie Bracey Sutton's curator insight, July 1, 2013 12:55 PM

water is a resource we all depend on. Some of my best studies were on local Chesapeake Bay issues.

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A History of Conflicts

A History of Conflicts | ApocalypseSurvival | Scoop.it
Browse the timeline of war and conflict across the globe.

 

This database of global wars and conflicts is searchable through space and time.  You can drag and click the both the map and timeline to locate particular battles and wars, and then read more information about that conflict.  This resource would be a great one to show students and let them explore to find what they see as interesting.  This site is brimming with potential.     


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Sakis Koukouvis's comment, August 16, 2012 5:06 AM
Oh... You are lucky ;-)
Paul Rymsza's comment, August 22, 2012 11:15 AM
the potential of this site is amazing between the interactive learning system and the correlation between the timeline and location. If the human geography class is anything like this i can't wait for it!
Seth Dixon's curator insight, September 28, 2013 12:34 PM

 

This database of global wars and conflicts is searchable through space and time.  You can drag and click both the map and timeline to locate particular battles and wars, and then read more information about that conflict.  This resource would be a great one to show students and let them explore to find what they see as interesting.  This site is brimming with potential.