Is the world overpopulated? ImageImage courtesy Marc Imhoff of NASA GSFC and Christopher Elvidge of NOAA NGDC. Image by Craig Mayhew and Robert Simmon,

Slides:



Advertisements
Similar presentations
The Demographic Transition Model
Advertisements

The challenge of harnessing the demographic dividend
Population, Development and Climate Change – how are they linked? BSPS September 8 th 2011 Judith Stephenson Margaret Pyke Professor of Sexual & Reproductive.
Human Population Growth
The rate of growth is now linear, but we are adding the equivalent of 2.5 Canadas every year.
Predicting our Climate Future
Population & Environment II ES 118 Spring Life expectancy 20 th Century saw global transformation of human health 20 th Century saw global transformation.
I. I.Population Dynamics - Trends F. F.Population Projections – UN All scenarios include shifts in geographic distribution of population Medium variant.
Case study: China’s one-child policy
6-2 What Factors Influence the Size of the Human Population?
Human Population. SOME ALARMING STATISTICS Late 1600’s – ½ billion people 1830 – 1 billion 1930 – 2 billion Since 1975 – world’s population has added.
Chapter 4 Human Populations
Overpopulation and poverty What was it like before? What’s it like today, and how will it be tomorrow?
Human Population and Its Impact Are there too many of us? – Core Case Study p ck.php
Hot House Global Climate Change and the Human Condition Robert G. Strom, Professor Emeritus Department of Planetary Sciences and Lunar and Planetary Laboratory.
Distribution of World Population Growth  Increases and Decreases
Overpopulation. Estimates of Most Populous Countries in 2025 Ratio* = 2025:1950.
“People are everywhere. Some People say that there are too Many of us, but no one Wants to leave.”
Warm-up If you finished your quiz on Thursday...
Why? 3/27/12.
Global shift: the rise of the BRICs (Brazil, Russia, India, China) Chandima Ratnayake School of Social Sciences University of Northampton ImageImage from.
© 2006 Population Reference Bureau Rising Family Planning Use, Developing Countries Married Women 15 to 49 Using Any Method Percent Source: Population.
CH08-1 Population Measuring its growth & impact ronmental%20Science/course%20files/multimedia/l esson35/animations/3b_Cultural_Carrying_Capacity.html.
“People are everywhere. Some People say that there are too Many of us, but no one Wants to leave.”
Nina Agelvis-Chiu Geralyn Naguit Period 2. Overpopulation is a major increase of human race in the world. It’s when organisms exceed their carrying capacity.
 The number of people (organisms) that can be supported by a given ecosystem, based on their consumption of natural resources.  Each species has requirements.
Understanding Population Dynamics. Agenda Layout 1234 The world at 7 billion Demographic transitions 3 Patterns of population change Strategies needed.
Chapter 4 Human Populations
Ch. 12 Urbanization and Population. Population by the Numbers  About 2,000 years ago the world’s population was around 300 million  Little changed until.
Population Geography or Geodemography National Geographic.
It is evident from the graph that :- 1. the human population is increasing rapidly and shows a geometric (J-shaped) growth form 2. the population is doubling.
Human activities and global environmental change Diana Liverman or.
HONORS ECONOMICS POPULATION, HUNGER & WOMEN. MALTHUS THOMAS MALTHUS, AN EARLY ECONOMIST, ARGUED THAT DEVELOPMENT  HUNGER &POVERTY BECAUSE POPULATION.
Chapter 5 The Human Population Copyright © 2008 Pearson Prentice Hall, Inc. Environmental Science Tenth Edition Richard T. Wright.
OVERPOPULATION. LOCATION Biggest pressures occur in Third World (green) aka - Developing World.
FERTILITY AND POPULATION GROWTH. fertility and population growth ( 2 ) “It is possible to solve our population problems while at the same time respecting.
“People are everywhere. Some people say there are too may of us; but no one wants to leave”
Chapter 7 The Human Population. China’s Population Human population size, affluence, and resource consumption all have interrelated impacts on the environment.
World Population Growth Through History
Over-population What’s the big deal?. Is it true? “ All the people on the world could fit into a space the size of Texas.”
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.
Population Issues. Table of Contents 1. Overpopulation 2. Population Control 3. Population Futures.
1. What is the history of human population growth and how many people are likely to be on this planet by 2050? -For most of human history, the population.
Higher concentrations of CO 2 can increase temperatures 2 O C – 4.5 O C Bad Impacts: (1) Increased Mortality, (2) Reduced Agricultural Yields, (3) Rising.
Sustainability. Sustainable development tries to make sense of the interactions of three complex systems: the world economy, the global society, and the.
Environmental Studies, 2e © Oxford University Press 2011 All rights reserved Environmental Studies, 2e © Oxford University Press 2011All rights reserved.
Lecture 5 Ending Extreme Poverty The Age of Sustainable Development.
Overconsumption: The action or fact of consuming something to excess Professor Rebecca Bratspies.
with Area Proportional to Population
Since the early 1800s, the human population on Earth has been growing exponentially. Current world population is: 7 billion people.
Objectives Explain how the rate of human population growth is determined and compare the rates of growth over the last 100 years Distinguish between people.
Population Measures Courtesy of NASA. Will the World Face an Overpopulation Problem? Malthus on overpopulation –Population growth & food supply –Malthus’
Chapter 7 The Human Population. 1. Scientists Disagree on Earth ’ s Carrying Capacity Every 5 days, the human population grows by 1 million people – 1.8.
What impact does an increasing population have on the quality of education in Africa? Catherine Murray Deakin University EEG402.
Population change 1 What is demographic change?. 1.1 What is demographic change? The net change in the population store caused by the inputs of births.
Lecture 5 Ending Extreme Poverty The Age of Sustainable Development.
Human Population Growth
Social Studies Themes.
Zebra mussel reduces diversity
Overpopulation: the condition of having more people than can live on the earth in comfort, happiness and health AND still leave the world a fit place for.
HUMAN POPULATION Chapter 7.
Environmental Studies 202
                                .
The Human Population The Environmental Implications of China’s Growing Population China has 20% of the world’s population (1.3 billion) Currently the.
Stabilizing Human Population
World Population Growth
Human Population Chapter 8.
Environmental and Natural Resource Economics
The Demographic Transition Model
                                .
Presentation transcript:

Is the world overpopulated? ImageImage courtesy Marc Imhoff of NASA GSFC and Christopher Elvidge of NOAA NGDC. Image by Craig Mayhew and Robert Simmon, NASA GSFC Danielle Caplan School of Social Sciences University of Northampton

What’s the problem? In 1998, the global population stood at approximately 6 billion people. In 2011, just 13 years later, the global population increased to 7 billion people. Is the world overpopulated, and should we be worried? Photo from WingedWolf, Flickr, CC-BY-NC-ND

UNDP – Projected Global Population Growth However, Total Fertility Rate (TFR) is in decline = 2010 = In 2000, the global population was growing at approximately 78 million people a year. By 2012, the global population was growing at approximately 83 million people a year. Population Institute (2012) The Royal Society (2012, p.21) United Nations (2013) If TFR is in decline, why is the global population still growing? Increased number of women at childbearing age + increase in life expectancy = Rise in population Image from Wikipedia Commons, CC-BY-SAWikipedia Commons Permission has been granted to use the Figure

Does the planet have enough resources for 7 Billion people? Humans extract and use 50% more natural resources today than 30 years ago. It takes the world 1.5 years to regenerate what is consumed in 1 year. People in rich, developed countries consume up to 10x more natural resources than those in poorer, developing countries. Image from Institut Escola Les Vinyes, FlickrImage from Institut Escola Les Vinyes, Flickr, CC-BY-NC-SA Friends of the Earth Austria (2009)

Does the planet have enough resources for 7 Billion people? 7% of the worlds population are responsible for 50% of CO2 emissions. 1 American’s emissions are equivalent to 250 Ethiopians. Consumption is as important a topic as population, and both topics should be discussed in tandem. Barkham (2010) ImageImage from netalloy, Openclipart, Public Domainnetalloy

Is 7 billion too many? Not necessarily! It is a matter of distributing resources more equitably; and Educating people on how they can reduce their consumption levels.

The Challenges Reducing and repairing damage to the global environment. Reducing fertility rates and improving access to family planning health programmes. Reducing per capita resource consumption levels in developed countries.

The Recommendations A rapid transition away from fossil fuels. Reducing high speed consumption in developed countries. Educating women on family planning, and providing them with choices.

Conclusion The world’s population is predicted to grow for at least the next 90 years. It is important that the global community discuss population growth and its impact on the planet. It is equally as important that the global community discuss excessive resource consumption. Education is vital in changing peoples attitudes about resource consumption and family planning.

Recommended Reading Dryzek, J.S. (2013). The Politics of the Earth. 3 rd Edition. Oxford: Oxford University Press. Global Footprint Network (2013). Do we fit on the planet?

References Barkham, F. (2010). Hay Festival 2010: Overpopulation fears nonsense, says author Fred Pearce. The Guardian. overpopulation-nonsense. overpopulation-nonsense Friends of the Earth Austria (2009). Overconsumption? Our use of the worlds natural resources. Friends of the Earth. Population Institute (2011). From 6 billion to 7 billion. How population growth is changing and challenging our world: How population growth is changing and challenging our world. 6b-to-7b.pdf. 6b-to-7b.pdf The Royal Society (2012). People and the Planet. The Royal Society Science Policy Centre Report. planet/ PeoplePlanet.pdf. planet/ PeoplePlanet.pdf United Nations, Department of Economic and Social Affairs, Population Division (2013). World Population Prospects: The 2012 Revision, Highlights and Advance Tables. Working Paper No. ESA/P/WP