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:

8 South Americans

5 North Americans

0 Australians

12 Europeans61 Asians82 Non-White18 White

33 Christians17 Muslims

13 Hindus6 Buddhists

5 Animists

1 Jew

4 Other Religions

21 W/O any religion

67 Would be unable to read50 Would be hungry

80 Would live in Substandard Housing

1 Would be a university grad

5 persons would have a third of the income of everyone else (all US citizens)

14 Africans

7 Would 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.

China 1.355 billion

India 1.236 billion

United States 318.9 million

Indonesia 253.6 million

Brazil 202.7 million

Top 5 populated countries in the world:

https://www.cia.gov/library/publications/the-world-factbook/rankorder/2119rank.html?countryName=Afghanistan&countryCode=af&regionCode=sas&rank=40#af

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…

Amount Year 1 Billion18042 Billion19273 Billion19604 Billion19745 Billion19876 Billion1999 7 Billion20118 Billion20289 Billion2054

http://www.census.gov/ipc/www/popclockworld.html

http://en.wikipedia.org/wiki/List_of_urban_areas_by_population

Most Populous Metro Areas in the WorldThe following is a list of the top 10 largest

urban agglomerations in the world in 2013.

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.

Rank City Population (2010) Country Area (km²)

1 Tokyo 37,239,000  Japan 8,547

2 Jakarta 26,746,000 Indonesia 2,784

3 Seoul 22,868,000 South Korea 2,163

4 Delhi 22,826,000 India 1,943

5 Shanghi 21,766,000 China 3,497

6 Manila 21,241,000 Philippines 1,437

7 Karachi 20,877,000 Pakistan 803

8 New York City 20,673,000 United States 11,642

9 Sao Paulo 20,568,000 Brazil 3,173

10 Mexico City 20,032,000 Mexico 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. www.pregnantpause.org/overpop/

Africa’s population has tripled since 1960 and continues to grow the fastest. Europe had twice as many people as Africa in 1960. 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 90-95% 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.

EnvironmentEducationEmploymentFamily and MarriageFamily Planning/Reproductive HealthFertilityGender

Health/DiseaseIncome/PovertyMigrationMortalityOlder PopulationPolicyRace/EthnicityUrbanizationResource 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.