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Demographic trends: Earth’s population and its impact

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By 2045, the world’s population is expected to reach 9 billion people and 7 billion by the end of 2011 (Kunzig, 2011).

Facts in 2011:

  • 13% population with no clean drinking water
  • 5% population consumes 23% world’s energy
  • 38% population lack adequate sanitation

Data visualization regarding Earth’s population, its evolution in time and its impact is facilitated by the video below.

Source: National Geographic (2011)

The video compiled by National Geographic assesses the world through some metrics  and their evolution in time:

  • # Population: reaching 7 billion people in 2011, from 1 billion in 1800
  • # Average life span: 69 years in 2010, compared to 53 in 1960
  • % Population living in city to rural areas: >1 in 2008
  • # Languages: 7000 in 2011
  • # Countries: 194 in 2011
  • # New born per second: 5 in 2011
  • # Mega-cities (population >10 million): 21 in 2010, compared to 3 in 1975  (National Geographic, 2011)

With the worldwide population expected to exceed seven billion in 2011, National Geographic magazine presented  in the January cover story 7 Billion, a broad overview of demographic trends and their impact on the Earth’s population.

References

Measuring Train Service Readiness and Performance during Chinese New Year’s Rush
Shopping Centre Performance - Urbis Retail Averages 2010
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