Search

GEOGRAPHY EDUCATION

Supporting geography educators everywhere with current digital resources.

Tag

water

Choosing a Map Projection

“Cartographers at National Geographic discuss how they select an appropriate map projection for the September 2012 magazine map supplement. –World maps usually center on the land, with the Pacific Ocean divided as bookends. To show each ocean as a whole with the least distortion for our ‘Beneath the Oceans’ supplement map, we used a map projection called an interrupted Mollweide centered on the Pacific.”

Source: www.youtube.com

There is no one perfect map projection that fits all circumstances and situations. Think of a situation in which this map projection would be an ideal way to represent the Earth and in another situation that same projection would give you an incredibly limited perspective.  This video provides good insight into how to choose a map projection for a cartographic project. Here is National Geographic’s lesson using this video.

Tags: cartography, K12, geospatial, NationalGeographic, water.

Corinth Canal

“This photograph, taken by an astronaut aboard the International Space Station, shows the straight line of the Corinth Canal as it crosses a narrow isthmus between mainland Greece (right) and the Peloponnese Peninsula. The canal cuts through the narrowest part of the isthmus of Corinth. The goal was to save ships from the dangerous 700-kilometer voyage around the ragged coastline of the peninsula.”

Source: earthobservatory.nasa.gov

Questions to Ponder: What does the word Isthmus mean and how does this image help tell that story?  When did people start modifying Earth’s physical systems?  What factors do we need to consider when evaluating the impacts of human modifications to the environment?    

 

Tags: water, coastal, landformsGreece.

When Climate Change Meets Sprawl: Why Houston’s ‘Once-In-A-Lifetime’ Floods Keep Happening

But a local understanding of place is critical and this viral post–Things non-Houstonians Need to Understand–is pretty good.

“Unchecked development remains a priority in the famously un-zoned city, creating short-term economic gains for some, but long term flood risk for everyone.”

Source: projects.propublica.org

Houston’s development boom and reduction of wetlands leave region prone to more severe flooding.  Here is a great map of the change in impervious surfaces in the region from 1940 to 2017–when you combine that with record-breaking rainfall the results are catastrophic.  But a local understanding of place is critical and this viral post–Things non-Houstonians Need to Understand–is pretty good.   

Tagsphysical, fluvialwatercoastal, urban, planningtransportation, architecture.

“The Last of the Free Seas”

“The Last of the Free Seas is the title of this fantastic map of the Great Lakes made by Boris Artzbasheff.  It was published in Fortune Magazine in July 1940.”

Source: www.reddit.com

The inland waterways were absolutely critical to the demographic and economic development of the eastern part of the United States, especially from 1820-1940.  Before World War II, Great Lakes shipping exceeded the tonnage of U.S. Pacific Coast shipping (see hi-res map here). World War II and the beginning of the Cold War led to a consolidation of naval power for the United States and its allies, greatly expanding Pacific shipping trade and spurring fast-developing economies countries. 

 

Great Lakes shipping dramatically declined, in part because steel production has gone to lower-cost producers that were connected to the U.S. economy through the expanded trade.  Some could see irony since the steel warships created from the Great Lakes manufacturing enabled expanded Pacific and Atlantic trade that led to the decline of Great Lakes manufacturing and regional struggles in the rust belt.  Still, more than 200 million tons of cargo, mostly iron ore, coal, and grain, travel across the Great Lakes annually.

 

This deindustrialization clearly is a huge economic negative but the environmental impacts for lakeside communities has been enormous.  Industrial emissions in the watershed and shipping pollution in the lakes went down as waterfowl populations returned and more waterfront property became swimmable again.  Still this map of the environmental stress on the Great Lakes shows they are far from pristine.    

 

Tagsenvironment, historicalwater, resources, transportation, industry, economicregions, globalization.

 

Mapping Coastal Flood Risk Lags Behind Sea Level Rise

Federal maps help determine who on the coast must buy flood insurance, but many don’t include the latest data. Maryland is now making its own flood maps, so homeowners can see if they’re at risk.

Source: www.npr.org

Geographic themes are overflowing (it was an unintended pun, but I’ll just let that wash over you) in this podcast.  I suggest playing a game early in the year/semester called “find the geography.”  What geographic theme/content areas will your students find in this podcast? 

 

Tagspodcast, mapping, cartography, climate change, environment, watercoastal,  urban, planningurban ecology.

A Remote Paradise Island Is Now a Plastic Junkyard

Henderson Island is isolated and uninhabited—but its beaches are still covered in garbage.  

 

Henderson Island (article or podcast) is about the most remote place you can visit without leaving the planet. It sits squarely in the middle of the South Pacific, 3,500 miles from New Zealand in one direction and another 3,500 miles from South America in the other.  Henderson should be pristine. It is uninhabited. Tourists don’t go there. There’s no one around to drop any litter. The whole place was declared a World Heritage Site by the United Nations in 1988. The nearest settlement is 71 miles away, and has just 40 people on it. And yet, seafaring plastic has turned it into yet another of humanity’s scrapheaps.

 

Tags: pollutionOceaniawater, environmentsustainability, consumption.

Source: www.theatlantic.com

How Cookiecutter Sharks Eat Is Terrifying

Do not be fooled by its adorable name—the cookiecutter shark attacks by suctioning its lips to the flesh of its victims, spins, and ejects a cylindrical plug of flesh from its prey!

Source: www.youtube.com

This is the most delightfully fun video about one of the creepiest critters of the deep. 

 

Tags: water, biogeography, environment, physical, National Geographic.

Mapping the human impact on the Great Lakes

“It’s no secret that the Great Lakes are suffering tremendous ecological strain — Lake Erie was even pronounced “dead” for a time during the 1960s because of an overload of phosphorus from municipal waste. Back in 1615, though, when the entire region was pristine and explorers Samuel de Champlain and Étienne Brûlé gazed out together from Lake Huron’s shores, they dubbed it la mer douce, ‘the sweet sea.’ Today roughly one-quarter of Canada’s population and a 10th of America’s population drink from the Great Lakes basin; the beleaguered lakes alone hold more than a fifth of Earth’s freshwater.”

Source: www.canadiangeographic.ca

Questions to Ponder: What watershed do you live in?  Where does your drinking water come from?  When you flush the toilet, where does it go? How are places in your watershed linked?  How does this similar map shed more light on these issues?  

 

TagsCanada, environment, resources, waterspatial, scale

Water Is Life

Hundreds of thousands of refugees have fled South Sudan to escape the civil war. When they arrive in Uganda, water is what they need most. Without it, they will die.

Source: www.youtube.com

Next to nothing in this video will make you happy about the way things operate for refugees in Northern Uganda who have fled from South Sudan.  We all know the about the dire conditions that refugees face, but knowing about the specifics, and hearing stories from the refugees about their lives and living conditions is powerful.  A huge influx of refugees can tax local resources, especially water.  Food can be shipped in, but water a much more locally variable resource.   The UN refugee camps recommend at least 15 liters of water per person be made available each day, but often it is more like 4-8 liters in these camps.  Dedicated wells (or boreholes) are more effective, but costly.  Trucking in water from the Nile River is the preferred method to simply keep these drowning people’s heads above water.    

 

Questions to Ponder: Consider how much water you drink, use for cooking, bathing, etc. per day in your household.  How difficult would it be to live on 4 liters of water a day?  What about your lifestyle would be changed? 

 

TagsAfrica, development, Uganda, South Sudan, migrationrefugees, environment, waterenvironment depend, sustainability, resources.

Create a free website or blog at WordPress.com.

Up ↑