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Flashcards in population and resources Deck (21):
1

the population resources and pollution model

represents a fundimental ecological relationship

2

is there positive and negative feedback between the population and resource model?

YES

3

what are the 4 challenges driven by human population growth?

environmental degradation
economic loss
political conflict
social disruption

4

what are the challenges with political conflict (population growth)

-managing resources
-managing population
-conflicts/wars over resources
-pressure to use protected areas

5

what are the challenges with social disruption? (population growth)

-demand for housing
-increase in population size
-disease/pandemics
-providing adequate healthcare

6

what are the challenges with economic loss (population growth)

-more energy use
-increased unemployment
-scarce resources
-price rises

7

what are the challenges with environmental degradation?

-increased pollution
-more waste
-climate change
-increased use of fossil fuels
-habitat loss
-deforestation
-pressure on space

8

UN population estimates

predicted 3 scenarios for population change

9

UN population estimates scenario 1

population continuing to increase rapidly -finding ways to cope with increasing demand

10

UN population estimates scenario 2

gradual slowing in growth rate due to better healthcare and people having children later

11

UN population estimates scenario 3

drastic action will have been taken to reduce population growth e.g war and disease outbreaks

12

contrasting perspectives on population growth. who are the 3 perspectives

julian simon
thomas malthus
ester boserup

13

predictions of thomas malthus

-unless population was slowed by for example later marriages the exponential rise would outstrip food supply ( reach a point where we cant cope any longer) wont be enough resources

14

malthus graph

population grows rapidly
exceeds carrying capacity

15

what are the problems with malthus' ideas?

based on western experience

16

support for mathusian predictions - club of rome

1968 used computerised models to investigate the state of a range of resources as well as pop growth
their limits to growth report predicted that economic growth could not continue because of the limited availability of natural resources

17

what did the limits to growth model predict?

-population would continue to rise until 2050 and decline after
-rapid resource depletion in first half of 21st century
-pollution increases then falls in 2030

18

predictions of ester boserup

argued agricultural innovations such as green revolution proved population growth stimulated changes necessary to support extra numbers

19

predictions of julian simon

at times of scarity the greatest gains could be made from entrepreneurs substituting new resources and innovating

20

contemporary issues

demographic growth
agricultural growth
consumption growth
environmental degradation

21

does technology have all the answers

-limits of food production by environmental factors
-soil exhaustion and erosion
-climate change
-water shortages and pollution
-technology may be available but not shared
-may be too expensive in some regions