IB ESS SL1.3 SustainabilityPaper 1 & 2Core idea~12 min read
Environmental Justice and Equity
Pollution does not settle evenly. Neither do the benefits of the industries that produce it. In most environmental problems, one group gets the profit and a different group gets the consequences — and noticing that split is the whole point of environmental justice.
📚 What you need to know
Environmental justice is the right of all people to live in a safe, healthy environment, and to have a say in decisions that affect it.
Equity is fairness. It is not the same as equality — treating unequal situations identically can be deeply unfair.
Environmental burdens fall hardest on low-income communities, minority groups and indigenous peoples.
Justice has three parts: distribution (who gets what), procedure (who decides) and recognition (whose voice counts).
The people least responsible for climate change are often the most affected by it.
Indigenous knowledge is a legitimate source of environmental understanding and is often excluded.
Access to clean air, water and land is now recognised by the UN as a human right.
What environmental justice means
DefinitionEnvironmental justice is the right of all people to live in a safe and healthy environment, with fair treatment and genuine involvement in the decisions that shape it.
Two things are packed in there. One is about outcomes: who ends up breathing the dirty air. The other is about process: who was in the room when the factory site was chosen. A community can be given compensation and still be treated unjustly if nobody asked them first.
Economists call the shifted cost an externality. It has not disappeared — it has just been moved onto somebody who never agreed to carry it.
Equity is not the same as equality
This distinction is worth getting right, because ESS uses both words and they are not interchangeable.
Equality
Equity
Means
Everyone gets the same
Everyone gets what they need to reach a fair outcome
In climate policy
Every country cuts emissions by the same percentage
Countries that emitted most historically cut most and help fund others
Problem with it
Ignores where each group started from
Harder to agree, because someone has to accept a bigger share of the effort
If a question mentions “fair”, stop and decide which kind of fair it means. A uniform 30% emissions cut sounds equal and is wildly inequitable, because it locks in whatever level of development each country happens to have reached.
The three parts of justice
Compensation fixes distribution only. A community that was never consulted is still being denied the other two.
Where the burdens actually land
Polluting facilities — waste sites, incinerators, refineries, heavy industry — are more often sited near low-income and minority communities, where land is cheap and opposition is expected to be weaker.
Electronic waste from wealthy countries is frequently processed in poorer ones, where workers dismantle it by hand and are exposed to heavy metals and toxic fumes.
Resource extraction such as oil, gas and mining often damages the land and water of communities who see very little of the revenue.
Climate change is the sharpest example of all. Low-income countries and small island states have contributed a tiny share of historical emissions but face the worst of the flooding, drought and storm damage.
The climate mismatch in one line. Responsibility for emissions is concentrated in a small number of wealthy, industrialised countries. Vulnerability to the effects is concentrated somewhere else entirely. That gap is why questions of loss and damage, and of who pays for adaptation, dominate international climate negotiations.
Indigenous peoples and environmental knowledge
Indigenous communities manage or hold rights over a large share of the world’s remaining biodiversity-rich land, often with better conservation outcomes than areas managed by the state.
Their traditional ecological knowledge — built over generations of direct observation — covers fire management, seasonal cycles, species behaviour and sustainable harvest limits.
This knowledge has historically been dismissed as unscientific, which is a failure of recognition.
Conservation projects have sometimes removed indigenous people from land in order to protect it, taking their homes in the name of the environment.
Better practice now involves free, prior and informed consent: communities are asked before a project starts, with enough information to genuinely decide.
Rights and the law
In 2022 the UN General Assembly recognised access to a clean, healthy and sustainable environment as a human right. It is not directly enforceable in itself, but it changes the argument: a polluted river stops being an unfortunate side effect and becomes a rights violation, which campaigners and courts can use.
Note the pattern here and in the SDGs page. International agreements set direction and give people language to argue with, but they rarely force anyone to do anything. If you can say that clearly in an evaluation question, you are answering at the level examiners are looking for.
Worked examples
WE 1
Explain environmental justice
Explain what is meant by environmental justice, using an example. (4 marks)
Point 1: the definition
Environmental justice is the right of all people to a safe, healthy environment and to fair involvement in decisions affecting it.
Point 2: what injustice looks like
It is breached when environmental burdens fall on groups who gain little benefit, especially low-income, minority and indigenous communities.
Point 3: an example
Electronic waste from wealthy countries is often processed in low-income countries, exposing workers to heavy metals while the benefit of the original product went elsewhere.
Point 4: the process side
Those communities usually have no say in the decision, so the injustice is about participation as well as outcome.
Different people get the benefit and the harm, and only one group chosegive a real example and name the group carrying the cost — general statements cap you at two marks
WE 2
Apply equity to climate policy
Discuss whether all countries should be required to reduce emissions by the same percentage. (4 marks)
Argument for
It is simple, easy to monitor, and treats every country by the same rule, which makes agreement easier.
Argument against
It is equal but not equitable. Countries that industrialised early caused most of the historical emissions.
The consequence
A uniform cut locks lower-income countries into their current level of development while wealthy countries keep a much larger share.
Judgement
Equity suggests differentiated targets, with the largest historical emitters cutting most and supporting adaptation elsewhere — though this is harder to negotiate.
Equal treatment of unequal starting points is not fair treatmentdiscuss means both sides plus a conclusion; make the equality and equity distinction explicit
WE 3
Justify including indigenous knowledge
Suggest two reasons why indigenous knowledge should be included in environmental decision making. (3 marks)
Reason 1: it works
Traditional ecological knowledge is built on generations of direct observation and often produces better conservation outcomes on the land concerned.
Reason 2: it is their land
Indigenous communities live with the consequences, so excluding them breaches procedural justice and recognition.
Point 3: better practice
Free, prior and informed consent means communities are asked before a project starts, with enough information to decide.
Better decisions and fairer decisions, at the same timegive one practical reason and one justice reason — it covers both angles a marker might want
💡 Exam tips
Use the phrase who benefits and who bears the cost. It structures almost any justice answer.
Keep equity and equality distinct and say which one you mean.
Name a real example — e-waste, oil extraction, climate vulnerability of small island states.
Mention procedural justice as well as distribution. Most students only do the second.
Link back to intergenerational equity from the SDGs page where it fits.
Note that recognition of a clean environment as a human right came from the UN in 2022.
⚠ Common mistakes
Treating equity and equality as synonyms. They lead to opposite policies.
Only discussing outcomes. Who was consulted matters just as much.
Vague examples. “Poor people suffer more” needs a named case to earn credit.
Ignoring indigenous knowledge. It is explicitly part of the syllabus, not an optional extra.
Assuming rights are enforceable. Recognition changes the argument; it does not compel action by itself.
Forgetting the historical dimension. Responsibility for emissions built up over two centuries, not last year.
Up next: Measuring Sustainability with Indicators — all of this needs numbers before anyone can act on it. The next question is which numbers, and how much to trust them.
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