IB Global Politics Understanding Sustainability: Definitions, Interpretations, and Perspectives Notes

Sustainability as a Contested Concept

1. Sustainability is the principle of meeting present needs without compromising the ability of future generations to meet their own needs. This canonical definition comes from the 1987 Brundtland Report (Our Common Future), published by the World Commission on Environment and Development.

1. Sustainability and sustainable development are not the same thing. Sustainability refers to a long-term goal - a state in which human activity stays within ecological and social limits indefinitely. Sustainable development is the process and pathways undertaken to reach that goal. Two actors can agree on the goal while disagreeing entirely on the pathway.
2. The concept is contested because its meaning shifts depending on which dimension you prioritise, which time horizon you adopt, and whose needs you centre. The IB Global Politics syllabus identifies three components: environmental, economic, and social sustainability. Whether these three are equally important, or whether environmental sustainability is the foundation upon which the others depend, is one of the central debates.
3. Sustainability carries an intergenerational dimension that makes it inherently political. Decisions made today about fossil fuel extraction, deforestation, and debt accumulation impose costs on people who have no voice in the decision. This is why sustainability debates often invoke justice - asking not just what is efficient but what is fair across time.

Environmental Sustainability

1. Environmental sustainability means staying within planetary boundaries - the biophysical thresholds that keep Earth's systems stable. The Stockholm Resilience Centre identifies nine of them, including climate change, biosphere integrity, land-use change, freshwater use, and ocean acidification. As of 2023, six of the nine have already been breached.
2. Policy in this area means decarbonising energy systems, protecting biodiversity, and restoring degraded ecosystems. The 2015 Paris Agreement is the central instrument, aiming to hold warming well below 2 degrees Celsius above pre-industrial levels. The 2022 Kunming-Montreal Global Biodiversity Framework committed states to protecting 30 per cent of land and sea by 2030.
3. China illustrates the tension between economic development and environmental protection. China lifted over 800 million people out of poverty since 1978, but air pollution contributes to an estimated 1.1 million premature deaths every year, and 12 million of the 664 million tonnes of grain produced annually are contaminated by heavy metals. Pollution-related economic losses were estimated at 3.5 per cent of GDP in 2010.
4. Costa Rica represents the opposite approach. It invested significantly in sustainable development and environmental protection, and now generates nearly 100 per cent of its electricity from renewable sources annually.
5. Bhutan has a constitutional mandate that at least 60 per cent of its land must remain forested, and it absorbs more carbon dioxide than it emits, making it one of the world's few carbon-negative states.

Economic Sustainability

1. Economic sustainability treats sustainability as an economy that can keep running across generations. It can mean efficient resource use, innovation, and long-term productive capacity, or it can mean carbon pricing, circular economies, and green investment.
2. The global green bond market exceeded 600 billion US dollars in issuance in 2024. The EU's Carbon Border Adjustment Mechanism, phasing in from 2026, charges importers for the carbon content of goods like steel and cement, attempting to prevent carbon leakage where production simply moves to states with weaker regulation.
3. There is debate about whether economic growth and environmental sustainability are compatible. Mainstream approaches assume they can be reconciled through efficiency gains, technological innovation, and market mechanisms. De-growth scholars like Andre Gorz, who coined the term in 1977, argue this is incompatible with planetary limits in already-wealthy states, where wellbeing has decoupled from GDP growth.
4. Gorz proposed three principles: abolish growth as an objective, accept that further growth in rich states does not increase happiness, and recognise that Earth has finite resources. The counterargument is that green growth, driven by renewable energy and circular economies, can decouple GDP from resource use.

Social Sustainability

1. Social sustainability is the hardest of the three to define. Magnus Bostrom notes it is more difficult to define than environmental sustainability because it encompasses equity, health, education, democratic governance, and the social cohesion that holds a society together when crises hit.
2. The Brundtland Commission identified core social needs: clean water, nutrition, security, wellbeing, justice, and democratic systems of governance. These can be arranged in a hierarchy similar to Maslow's: states must first ensure basic needs like clean water and nutrition before factors like democratic governance.
3. Social sustainability has strong links to gender equality. UNICEF research shows that girls who complete secondary education earn more, marry later, and raise children who are healthier and better nourished. This is reflected in SDG 4 (quality education) and SDG 5 (gender equality).
4. Social justice is a key component of social sustainability. It is defined as the fair distribution of wealth, privilege and opportunities within a society. Strategies for achieving it include broadening access to education, increasing political participation by women, and increasing equity between rich and poor both within and between countries.
5. A sustainability policy without social compensation can trigger backlash. France's 2018 yellow vest protests were sparked partly by a fuel tax framed as climate policy but perceived as regressive, hitting low-income rural households hardest.

Weak and Strong Sustainability

1. Weak sustainability accepts that natural capital can be substituted by human-made capital. If you cut down a forest but build a factory and a library, total wealth has not declined. Most mainstream economic policy operates on this logic. Carbon offsets work this way - emissions in one place compensated by tree-planting elsewhere.
2. Critics of weak sustainability argue that substitution often fails in practice. A 2023 investigation found that over 90 per cent of rainforest carbon offsets certified by the leading standard were likely worthless because the forests they claimed to protect were not actually under threat.

1. Strong sustainability holds that some natural capital is critical and cannot be substituted at any price. A stable climate, the ozone layer, biodiversity, freshwater systems, and intact ecosystems are treated as non-negotiable foundations of human civilisation.
2. The rights of nature movement reflects strong sustainability. Ecuador's 2008 constitution was the first in the world to grant legal rights to nature (Pachamama). In 2017, New Zealand granted legal personhood to the Whanganui River. Bolivia's 2010 Law of the Rights of Mother Earth took a similar approach.

Sustainability as a Political Issue

1. Sustainability allocates costs and benefits across states, generations, and social groups, which makes it inescapably political. Climate science can describe what is happening to the atmosphere, but who pays to fix it, who adapts, and who decides are questions of power, sovereignty, and justice.
2. The Common but Differentiated Responsibilities (CBDR) principle, written into the 1992 UNFCCC, says developed states should lead on emissions reduction because they have caused most historical emissions. The United States, the EU, and Japan account for over half of cumulative CO2 emissions since 1850, while sub-Saharan Africa accounts for less than 4 per cent.
3. At COP27 in Sharm el-Sheikh (2022), developing states won agreement on a Loss and Damage fund to compensate vulnerable nations for climate impacts they did not cause. The fund had been demanded for over 30 years. At COP28 in Dubai (2023), states agreed for the first time to "transition away" from fossil fuels.
4. Trade and supply chains carry sustainability conflicts. The EU's 2023 Deforestation Regulation requires importers to prove that products like soy, palm oil, and beef are not linked to deforestation after 2020. Producer countries including Brazil and Indonesia objected, calling it green protectionism that violates their sovereignty over natural resources.
5. Indigenous peoples manage about a quarter of the world's land surface and protect roughly 80 per cent of remaining biodiversity, according to the World Bank. In Brazil, deforestation in the Amazon fell by 50 per cent in 2023 under enforcement of indigenous territories, demonstrating that sustainability outcomes depend directly on political choices about who controls land.

Criticisms of Sustainability

1. Greenwashing: Companies and states use sustainability language to brand business as usual. Shell and BP both retreated from earlier emissions reduction targets in 2023. The European Commission found in 2021 that 42 per cent of company environmental claims online were exaggerated, false, or deceptive.
2. Vagueness: The Brundtland definition does not specify how to weigh present needs against future ones, or whose present needs take priority. That ambiguity makes the concept rhetorically powerful but operationally weak. New Zealand banned new fossil fuel exploration in 2018 while other states expanded coal mining - both claimed to pursue sustainability.
3. Growth dependency: Mainstream sustainability still assumes continued economic growth. De-growth scholars argue this is incompatible with planetary limits in already-wealthy states. Whether absolute decoupling of GDP from resource use is achievable at scale remains one of the most contested questions in sustainability economics.
4. Power asymmetry: States with greater financial capacity shape the global sustainability agenda. The 100 billion US dollars per year in climate finance that wealthy states promised in 2009 was not delivered until 2022, three years late, and much of it came as loans rather than grants, adding to developing states' debt burdens.

Theoretical Perspectives on Sustainability

Realist Perspective

1. Realists argue that sustainability commitments will always be subordinated to national interest. States sign climate agreements but continue expanding fossil fuel production when it serves their economic or security interests. The pursuit of energy security routinely overrides environmental commitments.
2. From a realist perspective, international environmental agreements like the Paris Agreement lack enforcement mechanisms, making them vulnerable to free-riding. States comply only when it aligns with their interests, not because of normative commitment.

Liberal Perspective

1. Liberals emphasise the role of international institutions, treaties, and norms in gradually building cooperation on sustainability. The Paris Agreement, the SDGs, and the Kunming-Montreal Biodiversity Framework show that collective action is possible even on hard problems.
2. Liberals point to interdependence: environmental problems cross borders, so states must cooperate because unilateral action is insufficient. International organisations like UNEP and the UNFCCC create norms and accountability mechanisms that shape state behaviour over time.

Postcolonial Perspective

1. Postcolonial scholars highlight that the sustainability agenda is shaped by wealthy Western states and often imposes costs on the global south. Policies like the EU Deforestation Regulation set rules that producer countries in Africa, Latin America, and Southeast Asia must follow without having equal voice in designing them.
2. From this perspective, mainstream sustainability can reproduce colonial patterns of extraction and control in new forms - what some call "green colonialism." Developed states that industrialised using fossil fuels now demand developing states adopt more expensive green alternatives, restricting their development pathways.

Case study

The Paris Agreement and Climate Governance (2015)

• Background
  • Adopted in December 2015 at COP21, the Paris Agreement was the first legally binding global climate accord covering all nations.
  • Goal: limit global warming to well below 2 degrees C above pre-industrial levels, with efforts to limit to 1.5 degrees C.
  • 195 countries signed, each submitting Nationally Determined Contributions (NDCs) outlining their emissions reduction targets.
• Key Mechanisms
  • Operates on a "pledge and review" system - countries set their own targets and report progress every 5 years.
  • The Green Climate Fund was established to mobilize $100 billion annually from developed to developing nations (target unmet until 2023).
  • The Global Stocktake (2023) was the first comprehensive assessment - concluded the world is "not on track" to meet goals.
• Achievements
  • Unified nearly every nation under a single climate framework for the first time - including the US, China, and India.
  • Accelerated the global energy transition - renewable energy investment reached $500 billion annually by 2022.
  • Created accountability norms that shifted corporate behavior - over 700 companies committed to net-zero targets.
• Criticisms and Limitations
  • NDCs are voluntary and non-enforceable - no penalties for failing to meet targets.
  • Current pledges put the world on track for 2.5-2.8 degrees C warming - far above the 1.5 degree target.
  • The US withdrew under Trump (2017-2021), rejoined under Biden, creating uncertainty about long-term commitment.
• IB Connections
  • Central case for evaluating global governance mechanisms and the effectiveness of international agreements.
  • Illustrates the collective action problem - states benefit from others reducing emissions while free-riding.
  • Raises questions about climate justice - historical emitters vs. most vulnerable nations.