Since the mid to late twentieth century, built up areas on Earth have increased over 2.5 times. However, out of the entire globe, the 7.3 billion people that call Earth home live and work on a mere 7.6% of the global land mass. Research and statistics have shown that a large majority, 90% to be exact, of the most heavily populated urban centers are located in Asia. Additionally, 50% of the largest urban areas are located in the United States. This shows that the concentration of people living in rural areas is decreasing, and urban centers are thriving. These statistics, coming from European Commission's Joint Research Centre at the United Nations Conference on Housing and Sustainable Urban Development (Habitat III), also show us that these heavily populated urban centers are mainly located in low income countries, whereas the biggest built up urban centers are located in high income countries.
I think that these statistics are important because they give us insight into the dynamics of the current population. I also was able to make a connection between this article and the previous unit regarding population pyramids and trends. https://www.sciencedaily.com/releases/2016/10/161018132405.htm
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November 2016
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