IB ESS HL A 6 Environmental Law Levels Questions
Practise IB ESS HL HL.a.6 by applying environmental law levels concepts to environmental systems questions.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Practise IB ESS HL HL.a.6 by applying environmental law levels concepts to environmental systems questions.
Evaluate the policies or legislation or actions that exist locally, nationally and internationally that address this issue.
Issue addressed: for example, ozone depletion
International level: policy/legislation/action:
Montreal Protocol in 1987;
technological development to replace CFCs with HFCs;
Evaluation:
proposed elimination of CFC s however not all countries followed the schedule;
reduction of 50 % by 1999 which some countries met earlier;
further meetings in London and Copenhagen to eliminate CFCs entirely by 2000 ;
...with recognition that ELDCs needed more time;
HFCs a greenhouse gas, so cause other problems;
substitution of CFCs highly effective as ozone levels recovering;
however variable reports on ozone recovery;
National level: policy/legislation/action: signing of international agreement;
national legislation/incentives for industries and population to comply;
investment in alternative energy to reduce NOx /ozone depletion from fossil fuels;
Evaluation:
highly effective policy as CFCs largely phased out in many countries;
countries found this an easy policy to implement as few changes needed/substitutes available;
CFCs are smuggled, so criminal/illegal parties involved;
ELDCs cannot always meet cost of alternative energy technology;
nations often committed to fossil fuel based technology;
Local level:
Policy/legislation/action:
lifestyle choices eg avoiding products that utilise CFCs;
...energy conservation to reduce fossil fuel use/ NOx release;
Evaluation:
avoiding CFC products no longer an issue in nations where they are banned;
...but was significant before legislation / still is in nations that have not signed agreement;
difficult to persuade changes in lifestyle;
Issue addressed: eg biodiversity loss
International level:
Policy/legislation/action:
CITES/Red List status;
Man and Biosphere Reserves;
WWF activity;
Evaluation (for CITES eg):
difficulty in assigning red list status;
CITES/red list status are species-based approaches and so habitat could be lost;
rely on countries accurately reporting data/bias in data;
politics can become involved/data becomes unreliable;
the policies are relatively easy for the public to understand;
government policy and international body checks - so reliable;
creates legislation for controlling trade in organisms;
National level:
Policy/legislation/action: national implementation/policing of CITES guidelines;
Evaluation:
different countries have different status for organisms and this can cause conflict;
e.g. trade in ivory is banned, but Southern African countries wish to have some trade;
Local level:
Policy/legislation/action: raising public awareness of Red Listed species;
local conservation initiatives for endangered species and their habitats;
Evaluation:
engages population/community support for CITES objectives;
applies these objectives at the level where it matters;
does not in itself carry the force of national/international legislation;
may conflict with other community needs/aspirations;
Marking guidance:
Award [3 max] if only one spatial level (local, national, international) is considered.
Award [4 max] if response gives only positive, or only negative, evaluations.