The Human Population - St. Louis Public Schools

The Human Population St Louis Public Schools-ppt Download

  • Date:18 Jul 2020
  • Views:21
  • Downloads:0
  • Size:2.57 MB

Share Presentation : The Human Population St Louis Public Schools

Download and Preview : The Human Population St Louis Public Schools

Report CopyRight/DMCA Form For : The Human Population St Louis Public Schools


The Human Population Scientists disagree on Earth s carrying Every 5 days the global humanpopulation increases by roughly1 million lives.
1 8 million infants born for every800 000 death 400 years ago the humanpopulation started to grow sanitation and agricultural.
The pattern of growth isexponentially The limiting factor forpopulation growth are A theoritical model of food.
Thomas Malthus 1798 Human population growexponentially Food supply growinglinearly increase by.
fixed amount each year Concluded thateventually the humanpopulation size wouldexceed the food supply.
Many Factors Drive Human Population Changes in population Fertility Life expectancy Disease.
Age structure Migration Changes in population size When demographers When CBR look at population immigration are greater.
trends in individual than CDR Emigrationcountries they take into growth rate is Immigration Emigration CBR number of birth.
CDR number of death Changes in population size Global population Population growth rategrowth rate CBR for single nation weCDR 10 need to take.
immigration andemigration into CBR Immig CDR emigr 10 Doubling time 70 .
growth arte Fertility rate Total Fertility Rate TFR Developed countriesestimate of the average Replacement level fertilitynumber of children that each.
women in a poulation will bearthroughout her childbearingyears Developing countries e g U S 2 3 person per day .
Replacement level fertility Mortality among young isThe TFR requiredto offset thehigher and aTFR ofaverage number of death in a.
greater than 2 1 is neededpopulation so that currentto achieve replacement population size remains stable level fertility .
Life Expectancy Average number of Infant mortalityyears per life of a new Number of death ofborn within particular children under 1 year ofcountry age 1000 live birth.
Life expectancy is Higher Child mortalityin developed countries Number of death of E g in 2008 for U S the children under age of 5 life expectancy was 78 1000 live birthyears overall.
Average life expectancies around the world Infant mortality around the world Aging disease The more number of Disease such as HIVelderly within a country which causes AIDS.
the higher CDR 22 million death E g U S CDR 8 death between 1990 2007 1000 In Lesotho South Africa Mexico CDR 5 death 23 of adult population 1000 are infected with HIV.
That is due to higherstandard of living andhigher number of elderly increase life expectancy Approximately 33 million people were living with.
HIV in 2009 22 million in sub Saharan Africa Age Structure Population The populationpyramid illustrate.
that it takes time foractions that attemptsto reduce birth tocatch up with agrowing population .
Migration Net migration rate U S 3 3 Is the difference immigrants 1000between immigration peopleand emigration in a.
Canada 7 immigrants given year 1000 peoplein a country 1000 people Positive Net migration The movement ofmeans people around the.
world does not affectthe total number ofpeople on the planet Family Planning As family income increases people have fewer children .
There is a link between higher level education andaffluence among females in particular and low birth Family planning is regulation of the number or spacingof offspring through the use of birth control With women option in family planning CBR tend to drop .
Many countries such as Kenya and Thailand used familyplanning campaign to lower its growth rate and TFR Total Fertility rate for educated anduneducated women in six countries Population size and consumption interact to.
influence the environment Population size is critical factor in the impactof humans on Earth Eating drinking building homes etc requires energy resources .
Population and economic development arenot equally distributed around the world The 12 most populous countries in the world Economic Development Of Earth 6 8 billion human habitants 5 6 billion live in.
developing countries and only 1 3 billion live indeveloped countries Although only 1 5 of population live in developedcountries they consume half of the world s energy andresources .
The average ecological footprint for the world s 30wealthiest countries is 6 4 ha 15 8 acers per capita Contrast that figure with average ecological footprintfor 50 poorest countries 1 0 ha 2 5 acres per capita Economic Development continue.
The IPAT Equation Some countries consume large amount ofresources negative impact on environmentalsystem while others live much lightly on the To estimate the impact of human life styles on.
Earth scientists developed IPAT equation Impact Population x Affluence X Technology Material possession Last but least A relatively small population can have a high.
environmental impact if its affluence leads to highconsumption and extensive use of destructive technology However an affluent nation can more easily takemeasures to reduce its environmental impact through theuse of technology that counters pollution and increases.
the efficiency of resources use Rural populations tend to have a high local environmentalimpact but a low global environmental impact Many Factors Drive Human Population. Changes in population size. Fertility. Life expectancy. Disease. Age structure. Migration. Demographers project that the global human population will be between 8.1 -9.6 billion by 2050. By 2100, it is projected to be between 6.8 billion and 10.5 billion. The dashed lines estimated values.

Related Presentations

Population Geography University of Missouri St Louis

Population Geography An Overview What factors influence population distribution? Environmental factors-- What type of natural resources are in the area? Does it have oil, or arable land or access to water? What is the climate like? Does it have capital resources such as transportation and technology?

14 Views0 Downloads

The Human Population

12% of teens have permanent hearing loss. Intensity of sound is measured in . decibels. 120 dB . is at the threshold of pain. Noise levels greater than this can cause permanent damage. Protection from noise pollution: Mufflers on autos and yard equipment. MP3 players in Europe can only go up to 100 dB. Ear protection

30 Views0 Downloads

Module 22 Human Population Numbers

Demographers project that the global human population will be between 8 billion and 10 billion by 2050. By 2100, it is projected to be between 7 billion and 11 billion. The dashed lines represent estimated values. Figure 22.4. Data from After Millennium Ecosystem, 2005; Population Reference Bureau ( 2017

9 Views0 Downloads

The Human Population Wappingers Central School District

Human population reached: 1 billion around 1800. 2 billion in 1930. 3 billion in 1960. 4 billion in 1975. 5 billion in 1987. 6 billion in 1999. 7 billion in 2011. Human Population Growth. Population is increasing due to decrease in death rate, not increase in birth rate. ... High = 10.9 billion.

20 Views0 Downloads

The Human Population and its Impact

The Human Population Over Time. The time it takes our population to double has decreased sharply. It only has taken about 12 years to go from 6-7 billion people. We are projected to hit 9 billion near the year 2050. Estimates say stabilization around 2100. (10.5 billion) What happened to cause this dramatic increase in exponential growth?

13 Views0 Downloads

Population Geography AP HUMAN GEOGRAPHY Home

Developed countries have more females than males, because they tend to live 7 years longer. Larger dependency ratios imply greater financial burden on the working class. 85 percent in sub-Saharan Africa, while 47 percent in Europe.

27 Views0 Downloads

AP Human Geography Unit II Population and Migration

Population Cartogram (population displayed by size of population rather than land area.For example Canada is the 2nd largest country in land area but ranks only 37th in population so it appears small of the map, Conversely, Bangladesh ranks only 92nd in land area but is 8th in population so it appears large.

23 Views0 Downloads

Chapter 8 9 Population Ecology and Human Impacts

Video w/critical thinking questions: World in Balance . What’s due? Independent research questions. 7.1. Homework: Reading Quiz Tomorrow Obj. 7.1-7.2.5 . APES Semester 1 Review packet. Tutorial on Dec. 3 (9-1pm)

11 Views0 Downloads


HUMAN POPULATION DYNAMICS Environmentalists and Social Scientists have identified 5 basic causes of the environmental problems we face.

9 Views0 Downloads

Ch 9 The Human Population

2. 3. Ch 9 The Human Population. Demography. The study of populations. ... Demographers looks at these properties to predict population changes: 1. Age Structure. 2. Survivorship. Fertility Rates. Migration. ... – Poor countries in which many children die early. 3. Fertility Rates

5 Views0 Downloads

Tour the World University of Missouri St Louis

Tour the World Some suggestions Thailand Thailand is home to Buddhist temples, coral reefs and floating markets. King Rama IV ordered the construction of a 32-kilometer- long canal in 1866, which later became home to the famous Damnoen Saduak floating market.

15 Views0 Downloads

SIMPLE MACHINES St Louis Public Schools

COMPOUND MACHINES Made of at Least 2 SIMPLE MACHINES He can clean your room. It can take the trash out and do other chores. He is made of gears, screws and pulleys.. This is the Chore 3,000. Our simple machine does a lot of stuff such as recycles cans and then washes them, and then has them come to be used again. Another thing it does is washes ...

14 Views0 Downloads