The end of human civilisation?

Slides:



Advertisements
Similar presentations
Is there likely to be a population crisis?
Advertisements

Population and Resources
Population Theories Demographic Transition Model
Until recent years, you probably didn’t think much about water. It was always there when you wanted it: for drinking, washing your clothes, or taking.
WATER SCARCITY DESERTIFICATION.
Different approaches to the ‘population-resources’ debate
Malthus, Boserup and the Club of Rome
As you watch the mini film think about the stages of the demographic transition model. How you can apply it to the visual. Think about the decisions that.
Malthus, Neo-Malthusians, and Boserup
Population.
Thomas Malthus.
1 Review Describe the general trends of human population growth over time 2 Review why do populations in different countries grow at different rates Form.
The Population-Resource Debate
Lesson 2: Human Population Growth Big Question Why Is Human Population Growth the Underlying Environmental Problem?
Sustainability: Global Population – History, Changes, Areas of Crisis, Causes, and the Future
Population Theorists.
Malthus And Boserup IB SL. Thomas Robert Malthus ( ) has become widely known for his theories concerning population and its increase or decrease.
THE DEMOGRAPHIC TRANSITION AND THE GREAT POPULATION THEORISTS.
Malthusian Theory on Overpopulation FRQ
Chapter 18 Population Changes. Chapter Outline  Demographic Techniques  Preindustrial Population Trends  Malthusian Theory  Modernization and Population.
Malthus, Boserup and the Club of Rome
What’s the story?. Your job.. Decide for yourself.. Is the world going to suffer by exceeding its resources? (specifically food)
Agricultural Geography
Since the early 1800s, the human population on Earth has been growing exponentially. The world population is estimated to be: 7,494,000,000 people in 2015.
time Distance Number of leaves Water loss (ml) Time (m)
Opening Assignment Study your Chapter 13 questions to prepare for today’s review game for extra credit points on the test tomorrow.
LECTURE 2 : Malthus, Boserup and Meadows Thrust of the lecture Postulation about the relationship between population & resources Malthus attempts to depict.
Chapter Five Processes and Cycles of Population Change.
Population Dynamics. Population Growth Populations grow exponentially Exponential growth is an increase by a percentage –Looks like a curve when graphed.
Our population is increasing faster than ever. The average American consumes 300 times as much energy as the average Bangladeshi The UN states that food.
Review Water Resources 2.5% of the Earth’s water is fresh water. – 70% of that is ice caps and glaciers – Almost 30% is ground water – Remainder.
How does population growth relate to these concepts?
Don’t forget: General trends Anomalies Specifics Do you think it is a good way to show how many people do not have enough food? Starter: Describe the pattern.
Mrs. C. Stephenson Theories of World Population and Resources.
Thomas Robert Malthus Sources: ashlab/.../ apgeographymaura.wikispaces.co m/file/view.
Population Issues in China Changes, Policies and Successes.
Put post-writes in the box.
Unit: Populations Chapter 7 Human Populations
Environmental Science
World Population Growth
Strategies to increase food production
Unit 2: Pop Factors Friday, Sept. 16.
L.O What is the world population and what factors affect it?
What is carrying capacity?
DEMOGRAPHY.
Strategies to increase food production
3.1 Population Dynamics Describe the nature and explain the implications of exponential growth in human populations.
STABILIZING WORLD POPULATION
Current Human Population Growth and Implications
AP Human Geography Population and Migration Unit
Age Structure – Demographic Transition
Populations What has been the impact of population growth upon the resources of countries at contrasting levels of economic development?
Theories for the relationship between population and resources
Population theories Malthus &Boserup.
Optimist views Boserup – Increasing the carrying capacity (1965)
(Malthusian) view of population and resources
Key Issue 4: Why might the world face an overpopulation problem?
Theories for the relationship between population and resources
Population theory.
Lesson 7: Sustainable Development
Sustainability: Global Population – History, Changes, Areas of Crisis, Causes, and.
Learning Unit 3: Sustainable Development
Malthusian Theory on Overpopulation FRQ
Population change over time
Population and resources – the work of Malthus, the Club of Rome and Boserup Objectives To evaluate the connection between population and resources To.
Population and resources – the work of Malthus, the Club of Rome and Boserup Objectives To evaluate the connection between population and resources To.
Why? Overpopulation (too many people) The answer?.
Key ? 2: Why Do Populations Rise or Fall in Particular Places?
Resource stewardship.
Population Dynamics.
Presentation transcript:

The end of human civilisation? Learning Objectives: To examine the theories of futurists To use evidence to decide who has got it right Starter: What does this graph tell you about the relationship between population and food supply?

Boserup’s basic theory MALTHUS BOSERUP We’re all going to die!! Boserup’s basic theory 1965 “An essay on the principle of population” - Published 1798 Don’t be so dramatic old man!! Natural checks control population growth Resources = 1, 2, 3, 4, 5, 6, 7… Population = 1, 2, 4, 8, 16, 32… Necessity is the mother of invention

Name a natural check shown in the pictures Name the man Name the woman Name a natural check shown in the pictures Draw a version of the man’s graph What date was the man’s essay written? Draw a version of the woman’s graph What date was the woman working on her theory? Complete the saying… “Necessity is the mother of…….” Quick quiz option – how much can they remember?

To examine the theories of futurists Learning Objectives: To examine the theories of futurists To use evidence to decide who has got it right Believed that population was getting bigger quicker than human’s ability to produce food. Had a positive view of population growth. Believed that human’s were intelligent beings and would invent solutions to problems such as a lack of resources. Believed that once a ‘point of crisis’ had been reached, there would be a ‘natural check’. This could be a famine, a natural disaster or a war. Believed that if people were facing a crisis (lack of resources) they would invent a way to avoid a natural check. Believed that if the population got too big, there would be a ‘point of crisis’. Believed that the world’s population could continue growing indefinitely. Had a negative view about population growth and thought there was a limit to population growth. Classification option – Malthus or Boserup?

To examine the theories of futurists Learning Objectives: To examine the theories of futurists To use evidence to decide who has got it right 850 million people suffer from chronic hunger Growing use of GM crops is slowly Reducing hunger in some parts of The world New inventions such as better farm Machinery have made growing Food easier in the last 100 years. Recent unrest in Egypt and Tunisia Was caused by arguments over The price of food Desertification in Africa is making Famine worse in some countries Evidence for....? Can you think of anything else? Rich nations are putting $billions of into researching new ways of Providing food and other resources Increased technology means new Discoveries and inventions are Found every day

In support of Boserup there have in fact been many ways since Mathus’s time in which people have increased food production. These include: Draining marshlands Growing crops in greenhouses Terracing on steep slopes Sophisticated irrigation techniques Using artificial fertilizers and pesticides Intensification and extensification Evidence for....? Can you think of anything else? Fish farming However, in support of Malthus can you think of an environmental impact or further implications for each one of these points?

Malthus vs Boserup: Who’s right? Write a tweet telling the world what you’ve decided and why: Only use 140 characters (letters) – spaces are included! Give our point of view Provide some evidence Explain what this means for us

The Limits to Growth Model - which side does it take? Population Agricultural production Natural resources Industrial Production Pollution These five factors have been observed to grow at an exponential rate (2,4,8) until the resource base diminished forcing a slowdown in industrial growth. However population and pollution will continue to rise for some time after the peak of industrialization, finally halted by a rise in the death rate due to lack of food, water and medicinal supplies. This study suggests that if trends continue the limits to growth will be reached b 2070!!

Exam question (15 marks) Discuss the opposing views of the neo-Malthusians and anti-Malthusians in terms of population and resource relationships. Offer a balanced review to include a range of arguments Support opinions and conclusions with evidence