Transcript of "Human population growth melissa mathew"
Outline Definition of human population growth What causes and what effects it Effects of population growth on the United States Baby boomers Effects of population growth on Ghana
Definition Increase in the number of who inhabit a territory or state http://dictionary.reference.com/browse/population+growth Population growth is the change in a population over time, and can be quantified as the change in the number of individuals of any species in a population using "per unit time" for measurement. In biology, the term population growth is likely to refer to any known organism, but this article deals mostly with the application of the term to human populations in demography. http://en.wikipedia.org/wiki/Population_growth
Positive Population Growth Rate Increase in birth rate Increase in fertility rate Decrease in child mortality rate Decrease in death rate Longer life-span
Reasons For Increase In PopulationGrowth Medical advances Vaccinations, availability Better standard of living Homes, clothing, food Advances in agricultural technology Large scale farming More sanitation
How Far We Have Come http://www.youtube.com/watch?v=sc4HxPxNrZ0
United States About 2.1 births per a woman: fairly constant Life expectancy: increased 76.0 years in 1993 82.6 by 2050 Diversification by immigration Net immigration: 880,000 people per year
United States Population is increasing, but population growth rate is slowing down Population to increase to 392 million by 2050 Growth rate to decrease from 1.1 in 1990 to .54 by 2040 Reason why growth rate is decreasing Population is getting older Increase in death rate
Expected Growth Immigration and fertility After 2011, each year the number of births should exceed the year before it 1/3 of the current population is caused by immigration
Baby Boomers During the Great Depression there was a decrease in birth rate When that generation reached adulthood, there was an increase in births 1957 had the most births ever recorded in history
Effects of Baby Boomers More focus on education (college enrollment) Marrying later, smaller families Economic issues
United States Increase in population is overall positive More economic prosperity More production of jobs Better standard of living Downside of population growth Economic instability in the future
Ghana Currently the growth rate is 2.9% However it is not over populated In 1960, 12.3% of the population was immigrants In 2003 3% was over 65 43% was under 15
Ghana Children must enter the work force at younger ages to support large families Not enough funds for public education for that many children Repeated pregnancies causes health concerns
Population Policy Developed in 1969 3rd country in sub-Saharan Africa Meant to control the population growth Structure the distribution of the growth
Expected Growth By 2015 the population is expected to be 26,359,00 By 2020 the population is to reach 35.2 million Current fertility rate: 5.5 children per woman Is expected to increase Death rate is decreasing Modern health care, more availabilty
Ghana Population growth is overall negative Lower standard of living Less education Economic instability- government welfare Health concerns Child morbidity, death due to pregnancy, diseases
Expected Learning Outcomes Human population growth can either have a negative impact or a positive impact, depending on the country The population in the United States is increasing The increase in population is a positive thing for the U.S. The population growth rate in Ghana is increasing Ghana is having economic issues due to its population growth rate
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