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  2010 = 49.7 million  2050 = million  By 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

 Usually seen in underdeveloped countries  High birthrates  Young life expectancy

 Developed country  Roughly the same birthrate and death rate  What else can you interpret?

 More females than males  Low birthrate