Presentation on theme: "The Human World. By the end of 2011 we will have 7 BILLION 7 BILLION people on earth -roughly 1 billion every 12 years Latinos are growing in numbers."— Presentation transcript:
By the end of 2011 we will have 7 BILLION 7 BILLION people on earth -roughly 1 billion every 12 years Latinos are growing in numbers 2010 = 49.7 million 2050 = 132.8 million By 2050 3 out of every 10 persons in the US will be Latinos
How fast the world population is growing What factors affect population growth? Demographics Demography
Death rate – the # of deaths per year for every 1000 people Birthrate – the # of births per year for every 1000 people Natural increase (growth rate) – the difference bw an area’s death rate and birthrate
Death rates are lower in more developed countries because of – Improved health care More abundant food supplies Advances in technology Better living conditions
Sometimes in wealth industrialized countries you reach ‘Zero population growth’ When death rate and birthrate are equal What is a NEGATIVE effect of zero population growth?
High birthrate is seen in undeveloped countries such as those seen in Africa Typically tied to religious views What NEGATIVE effect does high birth rate have?
High birthrates and low death rates greatly increases population growth Doubling time – the number of years it takes a population to double in size Usually occurs in developing countries Ex: Africa – 25yrs EX: US – 300 yrs
What are NEGATIVE effects of Population Growth? Need for food Overuse of limited resources Uneven distribution by age What are POSITIVE effects of Population Growth? Increase of technology and creativity
When the death rate is higher than the birthrate of that country What NEGATIVE effects does negative population growth have? Economic consequences Difficult to find workers Clash of cultures
Pattern of human settlement is uneven People live where the following are available Fertile soil Water Climate w/o harsh extremes Terrain that allows for human life In areas where population is highly concentrated, people tend to live in metropolitan areas
How crowded a country or a region is measured by population density Is it good to have high population density?
Migration – movement of people from place to place Urbanization – when people move into cities Emigration v. Immigration
Push FactorsPull Factors No Jobs War Food shortages Persecution Poverty Available jobs and opportunities Religious freedom Political freedom Hope Land
What are some common themes that we see in El Paso when it comes to immigrants?
Useful tool to help you understand population characteristics of a country Reveals a lot about a countries patterns of fertility, mortality, immigration and history Population Pyramid Population Pyramid