Main Points:
- Before 2000, young people outnumbered old people. From 2000 onward, old people will outnumber young people.
- Until 2007 rural people outnumbered urban people. After 207, urban people will outnumber rural people.
- From 2003 on, the median woman worldwide will have too few or just enough children during her lifetime to replace herself and the father the following generation.
- No person who died before 1930 lived through a doubling of human population, nor is any person born in 2050 or later likely to live through a doubling.
- Everyone 45 or older has seen more than a doubling of human numbers from 3 billion to 6.5 billion from 1960 to 2005.
- Peak population growth rate reached 2.1% a year, occurred between 1965 and 1970.
- Population never grew with such speed before 20th century and is never again likely to grow with such speed.
- Descendants will look back on to late 1960s as most significant demographic event in history.
- Dramatic fall since 1970 of global population growth rate to 1.1 or 1.2% a year today resulted primarily from choices by billions of couples around the world.
- Growth rates have risen and fallen numerous times.
- The next half a century will see an enormous shift in the demographic balance between more developed and less developed regions. By 2050 the ration between less developed populations vs. more is 6 to 1.
- Changes in composition and dynamics escape public notice.
- Shifts attract political attention.
- Social Security reforms in the U.S fail to recognize the fundamental population aging.
- The article will focus on four major trends expected to dominate changes in human population.
- Current levels of growth are still greater than any experienced prior to WWII
- First absolute increase in population by one billion took from beginning of time until 19th century.
- By 2050, the world's population is projected to reach 9.1 billion plus or minus 2 billion people, depending on birth and death rates.
Authors Point:
This article talks about the demographics and population peaks throughout the 1960's to present, and the predictions until 2050. Changes in population escape the notice of the public, but catches the attention of the politics. Populations in poorer countries are estimated to have a higher population growth rate than in rich countries like the United States. The reasoning behind this is because the birth rates are high. Population is also estimated to rapidly increase by 74 to 76 million per year. With this rapid increase spurs questions about carrying capacity. The worries of carrying capacity dates back to the Babylonians.
This article talks about the demographics and population peaks throughout the 1960's to present, and the predictions until 2050. Changes in population escape the notice of the public, but catches the attention of the politics. Populations in poorer countries are estimated to have a higher population growth rate than in rich countries like the United States. The reasoning behind this is because the birth rates are high. Population is also estimated to rapidly increase by 74 to 76 million per year. With this rapid increase spurs questions about carrying capacity. The worries of carrying capacity dates back to the Babylonians.
My Thoughts:
This article was very impressing from the begin. The most thing that I like is that the article starts off talking about the human population, rapid growth and then eventually trying to compare it with the environment. Well I think it is true that the Earth has a huge amount of carrying capacity. I think it could be really low if we are overusing the biosphere's resources.
This article was very impressing from the begin. The most thing that I like is that the article starts off talking about the human population, rapid growth and then eventually trying to compare it with the environment. Well I think it is true that the Earth has a huge amount of carrying capacity. I think it could be really low if we are overusing the biosphere's resources.
So what?
If the world population grows rapidly then many of us will be affected especially the resources.
What if...?
the birth rates could decrease but also increase
Says who?
Joel E. Cohen
What does this remind me of?
The video of a bottle or a cup that Mrs. Ogo showed us. When the cup is pouring down quickly then the death rates and birth rates population raises up.
If the world population grows rapidly then many of us will be affected especially the resources.
What if...?
the birth rates could decrease but also increase
Says who?
Joel E. Cohen
What does this remind me of?
The video of a bottle or a cup that Mrs. Ogo showed us. When the cup is pouring down quickly then the death rates and birth rates population raises up.