The Human World

By the end of 2011 we will have 7 BILLION people on earth-roughly 1 billion every 12 years

Latinos are growing in numbers2010 = 49.7 million2050 = 132.8 millionBy 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 careMore abundant food suppliesAdvances in technologyBetter 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 sizeUsually occurs in developing countries

Ex: Africa – 25yrs EX: US – 300 yrs

What are NEGATIVE effects of Population Growth?Need for foodOveruse of limited resourcesUneven 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 consequencesDifficult to find workersClash of cultures

Pattern of human settlement is uneven People live where the following are

availableFertile soilWaterClimate 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 Factors Pull 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

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