Date | May 2017 | Marks available | 4 | Reference code | 17M.1.bp.4 |
Level | SL and HL | Paper | 1 | Time zone | |
Command term | Suggest | Question number | 4 | Adapted from | N/A |
Question
State and outline the units used to measure the global ecological footprint.
Units:
Outline:
Suggest two reasons why the total ecological footprint of a country may grow very rapidly in the future.
Reason 1:
Reason 2:
Explain the neo-Malthusian view of the relationship between population and resource consumption.
Markscheme
Units: Global hectares (Gha; accept Global hectares/person) [1].
Outline: area of land and water required to produce the resources consumed [1].
For each distinct, valid reason, award [1] for the reason and [1] for development/exemplification.
Possible reasons include:
- increase in living standards [1] – rise in use of non-renewable resources required to fulfil higher living standards [1]
- industrialization of the economy [1] – industrial development or industrialization of agriculture consume more mineral resources for fertilizer
- rise in population [1] – each extra person requires food/energy / has to dispose of waste
- rise of consumerism [1] – people want more disposable goods which increases use of resources
- Urban sprawl [1] – urban dwellers consume more energy resources for transport.
For example:
The rise in wealth [1] of the people of China means that they can afford more consumer goods which take up more resources such as oil and minerals [1].
Some countries have seen a large increase in population size [1]. These have to be fed which takes up more land for agriculture [1].
Award [1] for each valid point:
- human population has a carrying capacity [1]
- because it increases geometrically while resources increase arithmetically [1]
- population growth outstrips available resources which leads to famine [1]
- leading to a check/crash/adjustment [1]
This constitutes the Malthusian approach (maximum [2]).
- neo-Malthusians such as Erlich/Club of Rome [1]
- increase in environmental degradation [1]
- thus a need for population control [1]
Other valid points may be credited.
Award a maximum of [2] for answers that only consider a Malthusian approach – for full marks, points from the neo-Malthusian view are needed.