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.
Rome was the first city with one million residents, with that occuring in 5 BC. Over a thousand years later, London and Beijing joined that group as industrialization became the impetus for wide-scale urbanization. Today we are seeing an explosion of "million cities" throughout the world.
A refugee is a person who has been pushed away from their homeland and seeks refuge in another place. The United Nations High Commissioner on Refugees (UNHCR) provides a more narrow definition of a refugee as someone who flees their home country due to a “well-founded fear of being persecuted for reasons of race, religion, nationality, membership of a particular social group or political opinion.”
As Neal Lineback notes in this Geography in the News post, not all refugees are covered by this definition. Environmental refugees have been forced to leave their homes beause of soil degradation, deserticfication, flooding, drought, climate change and other environmental factors.
Tags: environment, environment depend, migration, unit 2 population.
TED Talks As of 2005, only 15 percent of the world was mapped. This slows the delivery of aid after a disaster -- and hides the economic potential of unused lands and unknown roads.
Great TED talk in under 3 minutes. It highlights the importance of mapping our world and how we can improve our society through such efforts. Really makes a great argument for untapped global potential.
TED Talks Map designer Aris Venetikidis is fascinated by the maps we draw in our minds as we move around a city -- less like street maps, more like schematics or wiring diagrams, abstract images of relationships between places.
This video touches on numerous themes that are crucial to geographers including: 1) how our minds arrange spatial information, 2) how to best graphically represent spatial information in a useful manner for your audience and 3) how mapping a place can be the impetus for changing outdated systems. This is the story of how a cartographer working to improve a local transportation system map, which in turn, started city projects to improve the infrastructure and public utilities in Dublin, Ireland. This cartographer argues that the best map design for a transport system needs to conform to how on cognitive mental mapping works more so than geographic accuracy (like so many subway maps do).
Google Street View Adds 400,000 Km of Roads, Biggest Update in History...including HUALIEN, TAIWAN!
One thing that I have noticed since moving to Taiwan is that some places are very much overlooked in google maps. This announcement is heartening, but also a greater indication of the expansion of geographic information systems and online mapping.
The open directory of supply chains and carbon footprints
Luke Walker's insight:
Luke Walker's insight:
Ever wonder how the global supply chain works? Check out this website to see how the global economy works. This gives some insight into where the various parts of global market products come from and where they are manufactured. The only piece of this that isn't shown is where they shipped off to be sold.
This particular sourcemap represents the supply chain of Snickers Bars. Click "browse" at the top to see others that have been created.
Questions to Ponder:
How does this relate to globalization? How does this affect countries of the core (United States)? How does this affect countries of the periphery (South America, etc.)?
Is this system good or bad in your opinion? Explain.
A page that plots the geographic distribution of the terms "pop" and "soda" when used to describe carbonated beverages...
This is an old classic that is going viral on Facebook right now, so I thought it would be time to link you to the original. This map isn't just cool, but a great portal to a discussion on regions, diffusion and cultural identity. This is a modern 'shibboleth' for the United States, a way to show where you are from to some extent. What are other 'shibboleths' that make your region distinct?
From season 2 - episode 16 "Somebody's Going to Emergency, Somebody's Going to Jail" It's "Big Block of Cheese" Day, which means that Leo sends grumbling sta...See it on Scoop.it, via American History...
Great video segment on map perspective. The debate between Mercator and Peters projections, and social inequality through map making.
A new study suggests that 1 in 10 people on the planet directly benefit from money sent home by migrants working in other countries. Here are figures detailing that money's impact on developing nations in 2006.
Excellent map that details global money flows, i.e. the migration of money. Remittances is a key issue in the global economy and a great statement about the relationship that exists between the "west" and the "rest"
Video. Cartographers at National Geographic discuss how they select an appropriate map projection for the September 2012 magazine map supplement. There is no one perfect map projection that fits all circumstances and situations.
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