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Population pyramids: Powerful predictors of the future

"Population statistics are like crystal balls -- when examined closely, they can help predict a country's future (and give important clues about the past). Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples."


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Nancy Watson's curator insight, September 26, 2014 4:04 PM

Population unit

Lauren Quincy's curator insight, March 20, 1:51 PM

Unit 2: Population and Migration

 

This video was about how demographers categorize data and analyze it. This video showed a few different population pyramids in order to show differences in population in different countries. It showed China as an example and pointed out the remnants of the one child policy 35 years before and how the number of men were higher due to sex selective abortions. They also talked about how the population pyramids could show what stage in the demographic transition model a country was in and how they use them to predict future patterns and changes. 

 

This relates to unit 2 because it covers topics such as population change, demographic transition models, sex composition, population policies and much more. Population pyramids are very useful due to the visualization of sex, age and number composition in a countries population. They are very important in the use of predicting the future change in population because it can tell what the population has gone through in the past and what to expect in the DTM. 

Daniel Lindahl's curator insight, March 21, 10:43 PM

This video illustrates how population pyramids have the ability to show how populations will rise and fall over time. Pyramids specifically show the population based on a specific age, and illustrates a country's amount of young people in comparison to the elderly. 

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Photos that bear witness to modern slavery

TED Talks For the past two years, photographer Lisa Kristine has traveled the world, documenting the unbearably harsh realities of modern-day slavery.

 

This is a chilling glimpse into the worst and darkest side of the economic systems of geography and labor in the world. It is estimated that there are more than 25 million people who today live in state that can be described as modern-day slavery. We should not discuss slavery only in the past tense, and yet it conflicts with how most people conceptualize the world today.

 

Questions to Ponder: How can this even be happening in the 21st century? What geographic and economic forces lead to these situations portrayed in this TED talk? What realistically could be done to lessen the amount of slavery in the world today?

 

Tags: TED, labor, economic, class, poverty, South Asia, Africa, video.


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Kyle Toner's comment, November 6, 2012 12:17 PM
This video truly opened eyes into the conflict of modern day slavery. I had no idea just how prevalent, global and horrible this situation is.
Seth Dixon's curator insight, November 6, 2013 10:51 AM

This is a chilling glimpse into the worst and darkest side of the economic systems of geography and labor in the world. It is estimated that there are more than 25 million people who today live in state that can be described as modern-day slavery. We should not discuss slavery only in the past tense, and yet it conflicts with how most people conceptualize the world today.


Questions to Ponder: How can this even be happening in the 21st century? What geographic and economic forces lead to these situations portrayed in this TED talk? What realistically could be done to lessen the amount of slavery in the world today?


Tags: TED, labor, economic, class, poverty, South Asia, Africa, video.

Felix Ramos Jr.'s curator insight, March 31, 4:34 PM

A truly sad reality is exposed in this well-produced video.  Many of us hear about slavery still happening around us but I think most of us brush it off as little more than taboo.  To see these photos and to hear this woman's firsthand account is shocking.  If you are not instantly moved to want to help, I don't know if you're human.  This is atrocious and I only pray that one day this reality comes to an end.