If the world were a village, how many would be… (Fill out your worksheet with your best guesses.)

If our world were a village of 100, how many people would be: 8South Americans 5North Americans 0Australians 12Europeans 61Asians 82Non-White 18White 33Christians 17 Muslims 13Hindus 6Buddhists 5 Animists 1Jew 4Other Religions 21W/O any religion 67Would be unable to read 50 Would be hungry 80Would live in Substandard Housing 1Would be a university grad 5persons would have a third of the income of everyone else (all US citizens) 14Africans 7Would use the internet

Have you felt the pressure? Chapter 1

Overpopulation refers to the overabundance of people in a region or area that lacks sufficient resources to provide for its people. China1.355 billion India1.236 billion United States million Indonesia253.6 million Brazil million Top 5 populated countries in the world:

Two Types of Overpopulation People Overpopulation: In poorer countries, many people, each using a small quantity of natural resources daily to sustain life, have a great collective impact on the environment and may add up to too many people for the local environment to support – malnutrition, famine, etc. Consumption Overpopulation: In wealthier countries, fewer people, each using a large quantity of natural resources from ecosystems across the world, have a great collective impact on the environment and may add up to unsustainably high levels of consumption. U.S. is seen as world’s leading overconsumer (1/4 of world’s energy consumption)

In 8000 B.C.E., only 5 million people were alive. Today there are over 7.19 billion people (and it’s increasing over 78 million people every year!)

Current World Population is… AmountYear 1 Billion Billion Billion Billion Billion Billion Billion Billion Billion2054

Most Populous Metro Areas in the World The following is a list of the top 10 largest urban agglomerations in the world in 2013.urban agglomerations The term “urban agglomeration” incorporates the population in a city or town plus that in the suburban areas lying outside of but being adjacent to the city boundaries. Urbanization: the growth of cities. Figures in the tables on the next slide are estimates for mid-2013.

RankCityPopulation (2010)CountryArea (km²) 1Tokyo37,239,000 Japan 8,547 2Jakarta26,746,000Indonesia 2,784 3Seoul22,868,000South Korea 2,163 4Delhi22,826,000India 1,943 5Shanghi21,766,000China 3,497 6Manila21,241,000Philippines 1,437 7Karachi20,877,000Pakistan 803 8New York City20,673,000United States 11,642 9Sao Paulo20,568,000Brazil 3,173 10Mexico City20,032,000Mexico 2,046

Mapping the Largest Cities of the World

In 1798, British economist Thomas Malthus proposed the unsettling theory that population growth would outrun the ability to produce food. He said that this would lead to war, famine, disease, and other calamities.

Although people no longer talk about a catastrophic “population explosion,” world population continues to grow. Unfortunately, the most affected countries are also the ones least able to support more people.

The world’s fastest growing population is in Africa.

Africa’s population has tripled since 1960 and continues to grow the fastest. Europe had twice as many people as Africa in By 2050 experts estimate there will be three times as many Africans as Europeans.

Carrying Capacity—number of people that can be supported in an area, given its physical resource base and the way that base is used.  Constantly changing as technology, values, cultures, and resource availability change. A: ONLY 500 million! Q: How many people could the earth sustain with the standard of living of the average American?

Developing countries account for more than % of today’s population growth.

Nearly 2.88 billion people in developing countries lack basic sanitation, almost 1.5 billion have no access to clean water, 1.2 billion lack adequate housing, and 1.0 billion lack access to modern health services.

The United States is the only developed country where large population increases are still projected, mostly because of immigration.

Environment Education Employment Family and Marriage Family Planning/Reproductive Health Fertility Gender Health/Disease Income/Poverty Migration Mortality Older Population Policy Race/Ethnicity Urbanization Resource Allocation What are some problems that arise when overpopulation occurs?

As the Earth’s population continues to mushroom, can ways be found to manage natural resources… …without causing ecological collapse?

Organizations like Population Reference Bureau and World Overpopulation Awareness are informing people of the issues and implications regarding population and the trends.

The most successful efforts are almost always the result of cooperation between government and industry. But as is true with all government regulation, laws tend to be effective only when they are understood and supported by the people who are affected: both producers and consumers.