IB ESS SL 7.1 Natural Resources Uses and Management Questions
Practise IB ESS SL 7.1 by distinguishing natural capital from income, classifying resources and evaluating sustainable-use decisions.
- Syllabus
- First assessment 2026
- Course
- ESS SL
- Level
- SL
Practise IB ESS SL 7.1 by distinguishing natural capital from income, classifying resources and evaluating sustainable-use decisions.
Figure 10(a): Fact file on Mindo cloud forest
Only one third of Ecuador’s identified cloud forest sites are protected. The Mindo-Nambillo cloud forest reserve forms part of several protected areas across Ecuador. The Mindo cloud forest covers 268 km2 and is home to several indigenous subgroups of the Quichua people. The village of Mindo is west of the reserve and is known for chocolate made from locally grown cacao. Organizations work with local farmers to find alternatives to cattle ranching and with indigenous groups to develop more sustainable agricultural practices, reducing habitat destruction.
Outline how the cloud forest may provide a named example of natural income.
a. Growth of vegetation can provide yields of timber/wood resources/fire wood/food/cacao/medicinal plants (if harvested within MSY);
b. Forest can provide a sustainable/annual yield of timber/wood resources/fire wood/food/cacao/honey/medicinal plants (if harvested within MSY);
c. Forest can provide erosion control through root systems/interception of water by the canopy;
d. Forest can provide flood prevention by increasing soil infiltration;
e. Forest can provide climate regulation by cooling the air through shade/evapotranspiration;
f. Forest can provide carbon sequestration/oxygen through photosynthesis;
g. Forest can provide freshwater through directing moisture into the ground (for groundwater)/through evapotranspiration resulting in more precipitation/through cloud-canopy interaction;
h. Cloud forests can increase income through tourism;
Note to examiners: Do not accept only a list/identification of goods or services eg timber/food. Do not accept clean air as a service.
Outline how the concept of sustainability can be applied to managing natural capital.
natural capital refers to natural resources that can supply a natural income of goods or services;
natural income is the yield/growth obtained from natural resources/capital;
to be sustainable, natural capital must be used at rate slower than its replenishment / within maximum sustainable yield / that fulfils current needs without compromising future availability;
if more than the natural income is extracted, then the use is unsustainable;
exploitation of natural capital may also be unsustainable due to processes of extraction/transport/processing / environment should be in same condition as at outset to be sustainable;
altering human behaviour/values/choices through policies/legislations/campaigns so that unsustainable exploitation of natural capital is reduced;
non-renewable natural capital is either irreplaceable or can only be replaced over geological timescales / non-renewable natural capital can never be used sustainably;
The question addresses the essential nature(concept) of sustainability rather than specific practices. However, do credit candidates for valid and specific examples if they exemplify any of the generic principles above.
Outline one ecological service provided by the Siberian taiga.
provides habitat for animals/birds;
(photosynthesis) acts as a carbon sink/absorbs CO2 reducing greenhouse emissions;
(photosynthesis) releases O2 necessary for living organisms;
filters water / maintains water table;
cools/moistens climate through evapotranspiration / source of moisture for precipitation;
vegetation prevents soil erosion;
increases/maintains biodiversity (increasing/maintaining resilience of biosphere);
pollination of plants/crops;
Do not accept only 'photosynthesis'.
Do not accept provision of goods eg timber/food.
Do not accept cultural, intrinsic or aesthetical benefits eg spiritual/tourism/recreation.
For credit response must focus on ecological service/function.
Figure:Total exports of timber (in units of thousand cubic metres) from Russia between 2012 and 2014
With reference to the timber-exports chart, calculate the percentage of Russian timber exports to China between 2012 and 2014.
5769034962×100=60.6% (approximately 61%).
No unit is required.
Outline one ecological service provided by the Siberian taiga.
provides habitat for animals/birds;
(photosynthesis) acts as a carbon sink/absorbs CO2 reducing greenhouse emissions;
(photosynthesis) releases O2 necessary for living organisms;
filters water / maintains water table;
cools/moistens climate through evapotranspiration / source of moisture for precipitation;
vegetation prevents soil erosion;
increases/maintains biodiversity (increasing/maintaining resilience of biosphere);
pollination of plants/crops;
Do not accept only 'photosynthesis'.
Do not accept provision of goods eg timber/food.
Do not accept cultural, intrinsic or aesthetical benefits eg spiritual/tourism/recreation.
For credit response must focus on ecological service/function.
Distinguish between renewable and replenishable natural capital using examples.
renewable natural capital includes natural resources that have a sustainable yield/harvest equal to or less than their natural productivity;
eg food crops/timber (geothermal energy);
replenishable natural capital includes non-living natural resources that depend on the energy of the sun (for their replenishment);
eg groundwater/ozone;
Outline the reasons why natural capital has a dynamic nature.
the value and status of natural capital may vary regionally;
eg cork may be highly valued in areas where grapes for wine are grown;
the value may also vary over time;
eg cork has been used for millennia as bottle stoppers for wine and other products but in the last 20 years its value has decreased as other resources have been used to seal wine bottles;
the value may vary due to other reasons, eg social/political;
eg uranium's value decreased quickly after the Fukushima nuclear disaster when public pressure led to several countries declaring they would phase out nuclear power;
the value may vary due to environmental/technological reasons;
eg lithium's value has increased as it is used to make batteries for electric cars and personal devices;
Award [1] for each correct reason and/or example, up to [4 max]. N.B. Credit may be allowed for alternative egs of equivalent validity, detail and relevance.
Figure A:Map of the SOTE pipeline and proposed OCP pipeline routes
Key for Figure 6(a):
The northern OCP pipeline route was completed in 2003. The proposed southern OCP route was rejected in favour of the northern route. The SOTE pipeline was completed in 1972. The map also shows protected nature areas. SOTE is operated by the government and OCP is run privately; both coexist today and are fully functional.
Figure:Timeline for the OCP oil pipeline
With reference to Figure 6(b), identify one conflict associated with the building of the OCP pipeline and sustainability.
a. Oil spills contaminated freshwater (2003/2009/2022);
b. Oil spills reduced drinking water (Quito in 2003/2009)
c. Oil spills contaminated habitats/estuaries (2003/2009/2013/2022);
d. Oil spills harmed wildlife (2009);
e. Oil spills adversely affected indigenous communities (2022);
f. Construction resulted in loss of habitats/deforestation (2003);
g. Social tensions between oil companies and local people (impacting social sustainability, 2023);
h. Conflict between oil company and environment/national park;
i. Financial obligation to repay the loan (2000) places a burden on the population/state;
To what extent are human food production systems more greatly influenced by cultural factors than they are by political, environmental or economic factors?
The following guide for using the markbands suggests certain features that may be offered in responses. The five headings coincide with the criteria in each of the markbands (although ESS terminology has been conflated with 'understanding concepts') This guide simply provides some possible inclusions and should not be seen as requisite or comprehensive. It outlines the kind of elements to look for when deciding on the appropriate markband and the specific mark within that band.
Answers may demonstrate
Understanding concepts and terminology:
Food production systems are influenced by factors such as scale; industrialization; mechanization; fossil fuel use; seed, crop and livestock choices; GMOs; water use; fertilizers; pest control; pollinators; antibiotics; legislation; and levels of commercial versus subsistence food production. Each of the above may have cultural, economic, political or environmental enablers.
Breadth in addressing and linking:
Cultural factors (beliefs, traditions, food preferences; religion) with political factors (international agreements, legislations, national security) and environmental factors (local climate, biomes, landscape, topography, soils, degradation) and economic factors (export/import, cash crops, cost of technology, land tenancy, employment).
Examples: Food production systems of different societies, including cultural/political/environmental/economic factors that might drive food production choices; Examples of legislation/laws/subsidies or lack thereof; Examples of economic drivers such as cash crops/subsidies;
Balanced Analysis: Of whether, and to what extent, cultural factors have a greater influence on food production systems than political, environmental and economic factors. Could include a range of societies with different factors that drive selection of food production systems;
A conclusion that is consistent with and supported by analysis and examples given e.g.: Cultural, economic, environmental and political factors all influence the nature of food production systems in complex and integrated ways that are difficult to isolate but perhaps the bottom line is in the environmental factors that ultimately determine what processes and crop choices are possible and effective.