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Part 3: Additional Deep Dives (courses 4016–4169) beginner

Introduction to Climate refugees

Duration0 hours
Modules7
ForGeneral public, lifelong learners
Video1-2min
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Course outline

Module 1 Module 1: Defining Climate Refugees and Related Terms

Defining Climate Refugees and Related Terms

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which term is most commonly used in academic and policy discussions to describe people forced to leave their homes primarily because of environmental change linked to climate?
  • A. Economic migrants
  • B. Climate refugees ✓
  • C. Asylum seekers
  • D. Internally displaced persons only

Why: 'Climate refugee' is a widely used umbrella term for people displaced mainly by climate-related environmental change, though it is not a legally recognized category under the 1951 Refugee Convention, which is why scholars and organizations often prefer terms like 'climate migrants' or 'environmentally displaced persons'.

Q2. Why is the term 'climate refugee' not formally recognized in international law under the 1951 Refugee Convention?
  • A. Climate change has no effect on human populations
  • B. The Convention requires persecution based on race, religion, nationality, political opinion, or membership of a particular social group, and climate-related displacement does not fit these criteria ✓
  • C. Only natural disasters are covered by international law
  • D. Climate refugees are always counted as economic migrants

Why: The 1951 Refugee Convention defines a refugee through persecution grounds such as race, religion, nationality, political opinion, or particular social group. Environmental or climate causes are not among these grounds, so people displaced by climate factors alone generally do not qualify for refugee status under that treaty.

Q3. What is the key difference between 'internal' and 'cross-border' climate displacement?
  • A. Internal displacement involves movement within a person's own country, while cross-border displacement involves crossing an international border ✓
  • B. Internal displacement is always permanent, while cross-border displacement is always temporary
  • C. Cross-border displacement only occurs in island nations
  • D. Internal displacement refers only to movement between cities in the same region

Why: Internal displacement describes people who move within their own country's borders, while cross-border displacement involves moving to another country. Most climate-related displacement is actually internal, which is an important point often overlooked in public discussion.

Q4. Which of the following best describes 'slow-onset' environmental change?
  • A. Sudden events like earthquakes and floods
  • B. Gradual processes such as sea-level rise, desertification, and prolonged drought ✓
  • C. Changes in political systems over decades
  • D. Temporary weather events lasting a few hours

Why: Slow-onset changes develop gradually over time, such as rising sea levels, land degradation, and recurring droughts. They contrast with sudden-onset disasters like hurricanes or floods, and their gradual nature can make displacement harder to classify and address.

Q5. What does the term 'voluntary' versus 'forced' migration refer to in the context of climate movement?
  • A. Whether a person chooses to move or is compelled to leave due to circumstances beyond their control ✓
  • B. Whether the government approves the migration
  • C. Whether the migrant has a passport
  • D. Whether the movement occurs during summer or winter

Why: Voluntary migration involves a choice, even if shaped by environmental pressures, while forced migration occurs when people have no realistic alternative but to leave. The distinction is debated in climate contexts because environmental stress often blurs the line between the two.

Module 2 Module 2: Causes of Climate-Driven Displacement

Causes of Climate-Driven Displacement

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which of the following is considered a 'sudden-onset' climate hazard that can trigger displacement?
  • A. Gradual sea-level rise
  • B. Desertification over decades
  • C. Flash flooding ✓
  • D. Slowly declining soil fertility

Why: Flash flooding happens quickly and without much warning, forcing people to leave their homes immediately. Gradual sea-level rise, desertification, and declining soil fertility are slow-onset processes that often lead to migration over longer periods.

Q2. Which term describes the gradual environmental changes, such as prolonged drought or rising temperatures, that gradually erode livelihoods over time?
  • A. Slow-onset hazards ✓
  • B. Acute disasters
  • C. Seismic events
  • D. Rapid mass movements

Why: Slow-onset hazards develop over extended periods and include drought, sea-level rise, and land degradation. They often push people to migrate gradually as living conditions deteriorate.

Q3. Why is drought a significant driver of climate-related displacement?
  • A. It destroys buildings instantly through pressure waves
  • B. It reduces water and food availability, undermining agriculture and rural livelihoods ✓
  • C. It causes immediate tectonic shifts
  • D. It increases ocean salinity in coastal cities only

Why: Drought reduces crop yields, livestock survival, and access to drinking water. Because many communities depend directly on agriculture, prolonged drought often forces families to seek work and food elsewhere.

Q4. Which factor most strongly increases the vulnerability of a population to climate-driven displacement?
  • A. Access to diversified income sources and strong social networks
  • B. Poverty, limited resources, and dependence on climate-sensitive livelihoods ✓
  • C. Living at high altitude with stable weather
  • D. Having advanced early-warning systems and insurance

Why: Poverty and dependence on climate-sensitive livelihoods such as rain-fed farming or fishing limit people's ability to adapt or recover, making displacement more likely. Access to resources, insurance, and early warning generally reduces vulnerability.

Q5. Which of the following best describes how climate change acts as a 'threat multiplier' in displacement?
  • A. It eliminates all other causes of migration
  • B. It intensifies existing pressures such as conflict, poverty, and weak governance ✓
  • C. It only affects populations in wealthy nations
  • D. It guarantees that all displaced people return home within a year

Why: Climate change amplifies existing stressors like economic hardship, political instability, and resource competition. In many cases, displacement results from the interaction of environmental change with these social and political factors rather than climate alone.

Module 3 Module 3: Global Patterns and Hotspots of Migration

Global Patterns and Hotspots of Migration

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which term is most commonly used to describe people forced to leave their homes primarily due to environmental changes such as sea-level rise, drought, or flooding?
  • A. Economic migrants
  • B. Climate refugees (or climate migrants) ✓
  • C. Asylum seekers
  • D. Internally displaced persons caused by conflict

Why: Climate refugees, or climate migrants, is the widely used term for people displaced mainly by environmental and climatic changes. Note that 'climate refugee' lacks a formal legal definition under the 1951 Refugee Convention, which is why the term 'climate migrant' is also common.

Q2. Which region is projected to experience the largest number of internal climate-related displacements in the coming decades, according to World Bank analysis?
  • A. Western Europe
  • B. North America
  • C. Sub-Saharan Africa ✓
  • D. Australia and New Zealand

Why: The World Bank's Groundswell reports project that Sub-Saharan Africa, along with South Asia and Latin America, will see the largest numbers of internal climate migrants, driven by drought, crop failure, flooding, and dependence on climate-sensitive livelihoods.

Q3. Why are small island developing states especially vulnerable to climate-induced migration?
  • A. They have very high population densities that make evacuation impossible
  • B. Sea-level rise, saltwater intrusion, and storm surges can make land uninhabitable and threaten freshwater supplies ✓
  • C. They are located in regions with no seasonal weather changes
  • D. Their governments actively prohibit emigration

Why: Low-lying island states face sea-level rise, saltwater intrusion into freshwater aquifers, coastal erosion, and intensifying storms, which can render homes and farmland uninhabitable and push residents to relocate, sometimes permanently.

Q4. What does the principle of 'non-refoulement' in international law mean in the context of climate displacement debates?
  • A. Refugees must return to their home country once conditions improve
  • B. People cannot be returned to a place where their life or freedom would be threatened ✓
  • C. Countries must accept all climate migrants regardless of numbers
  • D. Climate migrants lose all legal rights upon crossing a border

Why: Non-refoulement is a core principle of refugee law that prohibits sending people back to territories where they face serious threats. Debates center on whether it can or should extend to people fleeing climate impacts, since current legal protections do not explicitly cover environmental causes.

Q5. Which factor most often limits the mobility of people in climate hotspots, trapping them in vulnerable areas?
  • A. Excessive government subsidies for relocation
  • B. Lack of financial resources needed to migrate, often called 'trapped populations' ✓
  • C. Abundance of job opportunities in their home areas
  • D. Strict climate policies that ban movement

Why: Many of the most vulnerable people lack the money, social networks, or documentation needed to move. These 'trapped populations' cannot leave hazardous areas, which is a key concern in migration research on climate hotspots.

Module 4 Module 4: Legal Status and Gaps in International Protection

Legal Status and Gaps in International Protection

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Under the 1951 Refugee Convention, which of the following is required for a person to be recognized as a refugee?
  • A. Having lost their home due to a natural disaster
  • B. Having a well-founded fear of persecution based on race, religion, nationality, membership of a particular social group, or political opinion ✓
  • C. Having migrated voluntarily in search of better economic opportunities
  • D. Having been displaced by a sudden environmental event such as a flood

Why: The 1951 Refugee Convention defines a refugee by reference to a well-founded fear of persecution on five specified grounds. Climate-related displacement is not among these grounds, which is a central reason climate displaced people often fall outside the legal refugee category.

Q2. Why are people displaced by climate change generally not covered by the 1951 Refugee Convention?
  • A. Climate change has never been scientifically linked to human displacement
  • B. The Convention requires persecution by a state or actor on a protected ground, and environmental causes alone do not meet this test ✓
  • C. The Convention only applies to people who cross an international border by sea
  • D. The Convention was amended in 2010 to explicitly exclude environmental migrants

Why: Because the Convention centers on persecution linked to specific protected characteristics, displacement caused by rising seas, drought, or storms typically lacks the persecutory element and the required nexus to a protected ground, leaving a significant protection gap.

Q3. What is the term commonly used for the gap in international law where people displaced by environmental factors lack a clear legal status?
  • A. Non-refoulement gap
  • B. Protection gap ✓
  • C. Sovereignty loophole
  • D. Asylum deficit

Why: The term 'protection gap' describes the absence of a binding international legal framework that specifically grants status and rights to people displaced by climate change and other environmental causes, even though they may face severe hardship.

Q4. Which principle of international refugee law prohibits states from returning a person to a territory where their life or freedom would be threatened?
  • A. Pacta sunt servanda
  • B. Non-refoulement ✓
  • C. Jus cogens
  • D. Subsidiarity

Why: Non-refoulement is a core principle, found in Article 33 of the 1951 Convention and recognized as customary international law, that forbids returning individuals to places where they face serious threats. Its application to climate displacement is debated because the threat is often environmental rather than persecutory.

Q5. Which of the following is a regional or national approach that has offered some protection to people displaced by disasters or environmental events?
  • A. The Kyoto Protocol emission trading system
  • B. The Nansen Initiative and the subsequent Platform on Disaster Displacement ✓
  • C. The United Nations Security Council resolution on sea-level rise
  • D. The World Trade Organization climate agreement

Why: The Nansen Initiative (2012-2015), a state-led consultative process, and its successor, the Platform on Disaster Displacement, focused on protecting people displaced across borders by disasters and climate change. They produced non-binding guidance, and some countries have developed temporary humanitarian visas or residence permits for disaster-displaced persons.

Module 5 Module 5: Impacts on Host Communities and Receiving States

Impacts on Host Communities and Receiving States

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which of the following best describes a common economic impact of climate refugees on host communities?
  • A. Host communities always experience permanent economic decline
  • B. Host communities may see increased labour supply and demand for goods and services, though effects vary by context ✓
  • C. Host communities are unaffected economically because refugees rarely work
  • D. Host communities lose all access to public services immediately

Why: Research on migration generally finds that newcomers can expand labour supply and local demand, but the net effects depend on factors such as the skills of arrivals, the local labour market, and how quickly infrastructure and services are scaled up.

Q2. What is a frequently cited pressure that large inflows of displaced people can place on receiving areas?
  • A. A surplus of affordable housing
  • B. Reduced demand for water and sanitation
  • C. Strain on housing, water, health care, and schooling systems ✓
  • D. Automatic reductions in local crime rates

Why: Sudden population increases can overwhelm existing public infrastructure and services, which is why humanitarian and development planners often focus on supporting host communities alongside displaced populations.

Q3. Why do many scholars argue that host-community resentment toward climate refugees can arise?
  • A. Because displaced people never compete for any resources
  • B. Because perceived competition for jobs, land, and services can fuel tensions, especially where resources are already scarce ✓
  • C. Because host communities are always wealthier than arrivals
  • D. Because climate change has no effect on local resources

Why: Tensions tend to rise when arrivals are seen as competing for limited resources, and these perceptions can be intensified where the host community itself is poor or experiencing its own environmental stress.

Q4. Which principle is central to the idea of 'burden sharing' between receiving states?
  • A. Only countries that caused the most emissions should host any displaced people
  • B. Responsibility for hosting and supporting displaced people should be distributed across states rather than falling mainly on neighbouring countries ✓
  • C. Each state should refuse all climate migrants to protect its borders
  • D. Displaced people should be required to remain in their home countries

Why: Burden sharing argues that the costs of hosting displaced populations should be spread among states, including through financial, technical, and resettlement support, since a small number of countries often bear most of the load.

Q5. Which of the following is an example of a policy measure that can help both refugees and host communities?
  • A. Restricting all access to public services for newcomers
  • B. Investing in shared infrastructure such as schools, clinics, and water systems that serve both groups ✓
  • C. Relocating all host residents to make room for arrivals
  • D. Banning all employment for displaced people

Why: Shared infrastructure investment addresses service pressures while benefiting both populations, which can reduce perceptions of unfair treatment and support social cohesion.

Module 6 Module 6: Adaptation, Resilience, and Planned Relocation

Adaptation, Resilience, and Planned Relocation

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which term best describes the deliberate, government-supported movement of communities from areas at high risk of climate impacts to safer locations?
  • A. Forced displacement
  • B. Planned relocation ✓
  • C. Seasonal migration
  • D. Urban gentrification

Why: Planned relocation is a proactive adaptation strategy in which communities are moved in an organized way, often with government planning and support, from locations where hazards such as flooding, sea-level rise, or erosion make living there unsustainable. It differs from forced displacement, which happens in response to disaster or conflict without planning.

Q2. What does the term 'resilience' mean in the context of climate adaptation?
  • A. The ability to prevent all climate hazards from occurring
  • B. The capacity of a system, community, or household to absorb, recover from, and adapt to climate shocks and stresses ✓
  • C. The total amount of carbon a country can emit without penalty
  • D. The speed at which refugees can cross international borders

Why: Resilience refers to the capacity to absorb shocks, recover, and adjust to changing conditions while maintaining essential functions. It does not mean eliminating hazards entirely, which is impossible, but rather reducing vulnerability and strengthening the ability to cope.

Q3. Which of the following is an example of an adaptation measure that reduces exposure to climate hazards?
  • A. Building seawalls and raising homes on stilts in flood-prone areas ✓
  • B. Increasing the number of fossil fuel power plants
  • C. Removing early warning systems to reduce public alarm
  • D. Expanding coastal development without zoning rules

Why: Building seawalls and elevating structures are physical adaptation measures that reduce exposure to flooding. The other options either increase emissions or heighten vulnerability, which works against adaptation goals.

Q4. Why is community participation considered important in planned relocation projects?
  • A. It allows governments to avoid paying compensation to residents
  • B. It helps ensure relocation respects local culture, livelihoods, and social networks, improving long-term success ✓
  • C. It guarantees that relocation will happen faster
  • D. It is legally required only for projects located outside national borders

Why: Relocation that ignores community preferences often fails, as people may lose jobs, cultural ties, and social support. Involving residents in decisions about where and how to move tends to improve outcomes, acceptance, and long-term wellbeing.

Q5. Which statement best describes a key challenge of planned relocation?
  • A. Relocated communities always become wealthier than before
  • B. Relocation can disrupt livelihoods, social ties, and cultural identity if not carefully planned ✓
  • C. Relocation never requires land or housing
  • D. Relocation is only a concern for people living in cities

Why: Relocation can separate people from their land, jobs, kin networks, and cultural practices. Without careful planning, these disruptions can lead to impoverishment and psychological stress, which is why planning and support services are essential.

Module 7 Module 7: Policy Responses and the Future of Climate Mobility

Policy Responses and the Future of Climate Mobility

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which term is most commonly used in policy discussions to describe people forced to move due to environmental change, though it lacks formal legal recognition under the 1951 Refugee Convention?
  • A. Economic migrants
  • B. Climate refugees ✓
  • C. Internally displaced persons
  • D. Stateless persons

Why: Climate refugees is the widely used popular and policy term, but the 1951 Refugee Convention only protects people fearing persecution based on race, religion, nationality, membership of a particular social group, or political opinion. Environmental drivers are not included, which is why the term lacks formal legal status.

Q2. What is the main reason the 1951 Refugee Convention does not currently cover people displaced by climate change?
  • A. Climate change has not yet been scientifically proven to cause displacement
  • B. Its definition requires persecution by a state or agent, which environmental harm does not typically involve ✓
  • C. Only people who cross international borders can be considered refugees under any treaty
  • D. The Convention was repealed in the 2000s and replaced by regional agreements

Why: The Convention protects people with a well-founded fear of persecution for specific reasons. Floods, droughts, and sea-level rise are not persecution by an agent, so climate-displaced people usually fall outside the legal definition, even though their need for protection may be real.

Q3. Which policy approach involves granting temporary legal stay to people from countries hit by disasters, without granting full refugee status?
  • A. Repatriation agreements
  • B. Temporary protection or humanitarian visas ✓
  • C. Mandatory detention
  • D. Border externalization

Why: Temporary protection and humanitarian visas allow people from disaster-affected countries to live and work legally for a set period. Countries such as the United States have used Temporary Protected Status for this purpose after earthquakes and hurricanes, offering a flexible response outside the refugee framework.

Q4. What does the Nansen Initiative, launched in 2012, aim to achieve regarding cross-border disaster displacement?
  • A. Create a binding international treaty granting refugee status to climate migrants
  • B. Build consensus on protection gaps and develop non-binding guidance for states ✓
  • C. Fund large-scale relocation of entire island nations
  • D. Ban all migration from countries vulnerable to climate change

Why: The Nansen Initiative was a state-led consultative process that produced the Protection Agenda, a non-binding set of good practices. It focused on cross-border disaster displacement and encouraged states to use existing tools such as humanitarian visas and temporary stays, rather than creating a new binding treaty.

Q5. Which of the following is an example of a planned relocation policy in response to climate impacts?
  • A. Issuing tourist visas to residents of flood-prone areas
  • B. Government-supported moving of a community from a high-risk coastal area to a safer inland site ✓
  • C. Building sea walls around a city without moving any residents
  • D. Requiring residents to purchase flood insurance

Why: Planned relocation involves the organized, government-supported movement of people and communities out of hazardous areas to safer locations. Examples include relocations in Fiji and Alaska. Sea walls and insurance may reduce risk but do not move people, and tourist visas are not a relocation policy.

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