Why Environmental Displacement Is the Next Frontier in Populist Politics

As climate change increasingly reshapes patterns of human mobility, it is also transforming the political foundations of democratic citizenship. In this commentary, Dr. Oludele Solaja argues that climate-induced displacement should no longer be understood solely as a humanitarian emergency or a security challenge, but as an emerging battleground over political membership and democratic inclusion. Introducing the innovative concept of Climate Citizenship Populism, Dr. Solaja demonstrates how environmental displacement is becoming a powerful resource for exclusionary populist narratives that redefine who belongs within the democratic community. By bringing together scholarship on populism, climate mobility, and democratic citizenship, the commentary offers an original analytical framework for understanding how environmental change is reshaping contemporary political conflict and why the future of democracy will increasingly depend on how societies respond to the politics of climate-driven belonging.

By Dr. Oludele Solaja

Climate change has progressed from being an environmental issue into a central political issue in the 21^st century. As the entire debate and politics concerning climate change revolved around the issues of temperature increase, carbon emission, and environmental damage, the effects of climate change do not just end there. It is transforming the patterns of human inhabitation, transforming the ways of life of people, and fundamentally changing the geographical bases on which our understanding of citizenship rests. As environmental factors drive humans away, democracies now face a crucial dilemma: Who belongs to a world changed by climate change?

This article situates climate migration at the nexus of debates surrounding democracy, citizenship and populism. While populism has been defined as the political logic that distinguishes between ‘the pure people’ and ‘the corrupt elite’ (Mudde, 2004; Mudde & Rovira Kaltwasser, 2017), it is also shaped by debates over the ‘people’ and its boundaries. Populist movements often exploit existing anxieties over economics, culture, immigration and national identity. But in a warming, changing world, climate change-induced movement of people creates a new domain for this struggle.

Climate migration has become a key tool for constructing the ‘people,’ defining who is deserving and legitimating claims to belonging.  Evidence for this transformation is widespread. The 2022 IPCC Report (2022) points to climate change as a major driver of increased human vulnerability due to weather extremes, ecosystem degradation and impacts on food and water. In recent years, the Internal Displacement Monitoring Centre (IDMC) has documented that weather-related events cause the majority of new internal displacements worldwide. Nevertheless, climate-induced displacement cannot be understood in purely environmentalist terms but is a product of interactions among environmental changes, poverty, inequality, failures of governance, and armed conflict (Gemenne, 2011; McLeman, 2014). Therefore, climate migration reflects a broader set of unequal social and political relations that influence people’s ability to stay, adapt or leave their places of origin. The political debate on climate mobility, however, tends to remain framed within two dominant and limiting perspectives.

Firstly, it is widely regarded as a problem requiring a humanitarian response to protect vulnerable displaced people. Secondly, climate migrants are perceived as a threat to national security, welfare systems, labor markets, and cultural identity. Yet both approaches obscure a more profound transformation: climate migration is increasingly becoming a question of membership in the polity. The critical issue is not so much why people migrate as how existing political communities draw the boundaries of membership and belonging in the face of collapsing territorial stability. It is precisely within this terrain of uncertainty that populist politics appears particularly well positioned to thrive.

Populism is fundamentally concerned with issues of borders and political membership, often drawing on the divide between insiders and outsiders (Laclau, 2005; Müller, 2016). Climate-induced displacement offers a rich symbolic site for these populist efforts, since it is deeply entangled with concerns over the sovereignty of the nation-state, the administration of borders, the distribution of public goods, and the management of national culture. Climate migrants can thus be politically reframed not simply as dispossessed people, but as symbols of wider fears about social and political disorder.

Introducing Climate Citizenship Populism

To describe this new political tendency, this commentary introduces the term Climate Citizenship Populism. It is a variant of populism that uses environmental displacement to redraw the lines of democratic membership by defining climate migrants as a threat to the rights, resources, identity and sovereignty of a national community.

Climate Citizenship Populism is not like previous forms of political conflict over the climate, where the conflict might have been over whether climate change is occurring or over opposition to regulating it. It is based on the assumption of environmental disruption, but it is the social consequences that are politicized. Thus, the central conflict changes from a question of climate change to one of who pays the repercussions of climate change and who deserves political representation in a climate-changed world.

This analysis makes a helpful contribution to the current debate on populism in three significant ways. First, it sees climate-induced mobility as a new material trigger for populist mobilization, alongside the more commonly suggested economic insecurity, immigration, and cultural backlash. Second, it suggests that the focus of populist opposition has moved from immigration to democracy itself as the political nature of citizenship is transformed by environmental change. Third, it presents a new analytical framework—Climate Citizenship Populism—to make sense of the conversion of environmental displacement into exclusionary narratives of democratic citizenship.

The idea is to connect three lines of research that have been pursued independently so far: populism studies, climate mobility research and democratic citizenship theory. While existing studies have already provided interesting findings on adaptation and displacement, as well as on citizenship and territorial belonging, there is a lack of literature on climate migration and the governance of migration. The current body of research has shed light on migration and the governance of migration, adaptation and displacement, as well as on the relationship between territorial belonging and citizenship and rights, but there is a dearth of research on climate migration and the governance of migration. But there has been little effort to grasp how environmental displacement is influencing the political boundaries of citizenship through populist mobilization.

Climate Citizenship Populism thus draws attention to a more general shift in democratic politics. Climate change is not just an issue to be added to policy agendas but also a structural condition that alters the material and political conditions shaping societies’ notions of belonging. Populist players are now also trying to re-imagine the limits of the democratic community itself as patterns of human settlement are reconfigured amid environmental disruption. In the era of environmental disruption, patterns of human settlement are being redrawn, and populist actors are seeking to redefine the limits of the democratic community itself.

From Border Politics to Democratic Exclusion

Climate Citizenship Populism is not only possible politically; its reasoning can be seen in various regions. Whether it is a matter of humanitarianism or of political membership, sovereignty, and national belonging, a pattern is becoming increasingly recognizable: environmental displacement is increasingly understood as a political issue.

Climate mobility has increasingly been linked to broader European debates on immigration, border management, and national identity. Most contemporary migration movements are not solely a consequence of climate change, but the foreshadowing of future climate displacement has become a political issue. The incorporation of the theme of environmental mobility in more comprehensive narratives of demographic change, overburdened welfare states, housing crises and the failure of political elites to keep the nation together is becoming a hallmark of populist actors. In this sense, migrants are symbolic beings through which anxieties of globalization and social change are conveyed. It is not just the quantity, but the meaning associated with displacement in the stories of populism that has political dimensions.

These trends are also seen in North America, notably in political discussions about migration from climate-vulnerable Central America and the Caribbean. Studies have shown that economic insecurity, governance problems, and social vulnerability are interlinked with environmental pressures to shape migration decisions (McLeman, 2014; IOM, 2024). Political debates, however, tend to reduce such realities to a simple narrative about the border "crisis" and national insecurity. Climate displacement is integrated into a larger anti-immigration discourse, in which migrants serve as a symbol of the waning control of the state. Thus, environmental mobility becomes a political problem, ranging from global inequality to a perceived threat to national sovereignty.

Another facet of Climate Citizenship Populism is illustrated in the African context. In the Sahel and other affected areas of the Horn of Africa, there are growing incidences of internal, rather than trans-border, displacement driven by drought, desertification, flooding and resource pressures. These movements involve complex issues of land, livelihood, access to resources and political recognition. When resources are scarce, displaced people are sometimes portrayed as rivals for economic opportunities or public services, furthering narratives of territorial identity and belonging. In these settings, Climate Citizenship Populism does not appear as much as international border politics, but rather as a contestation over who is entitled to what land, resources, and community.

Perhaps the most profound challenge to conventional understandings of citizenship is provided by Small Island Developing States. Climate mobility raises more than just migration management questions, particularly for communities under existential threat from sea-level rise. Who, then, will be able to live on a land that is becoming uninhabitable, one where citizenship is organized? Climate displacement scholars have suggested that this type of event calls into question the notions of territorialized political membership (McAdam, 2012). They show how climate change is altering mobility patterns and destabilizing the sense of territory that underpins contemporary democratic citizenship.

Contributions to the study of Populism and Democratic Theory

Climate Citizenship Populism enriches the field of populism studies by introducing the idea that environmental disruptions should be considered a novel material condition of political mobilization. Previous scholarship has offered insightful accounts of populist politics as anti-elitism, cultural backlash, nationalism and immigration politics (Mudde & Rovira Kaltwasser, 2017; Moffitt, 2016). Climate Citizenship Populism is not an alternative to these explanations but an expansion of them, showing how political communities draw in their insiders/outsiders in the context of environmental instability.

This way of thinking takes the focus away from migration and towards citizenship. The classic discussions tend to revolve around whether migrants should be let in, kept safe, or kept out. Climate Citizenship Populism uncovers a more fundamental issue: What is the nature of democratic citizenship in an era when climate change is emerging as a primary factor in determining who can and cannot live? In this respect, climate migration is not just an issue for migration governance – it is an issue for the normative basis of democracy.

The idea also emphasizes the issue of climate justice. The concept of climate mobility is defined by deep global inequalities, including unequal historical responsibility for greenhouse gas emissions and unequal ability to adapt to climate change (Caney, 2010; Shue, 2014). Responses to climate migration which exclude are likely to become new forms of democratic exclusion, building on the history of unequal climate impacts. There is a need for effective adaptation and migration policies and political frameworks that acknowledge shared vulnerability and differentiated responsibilities in the context of climate mobility.

Conclusion: Citizenship in a Climate-Changed World

Climate crises have become an essential part of the democratic political landscape. Along with the changing landscape of environmental mobility, environmental disruption is also changing the political questions of belonging, rights and membership. The question for democracies is not only how to deal with climate migration, but also how to maintain democratic inclusion in a world where territorial stability is no longer guaranteed.

Climate Citizenship Populism offers a framework for understanding how environmental displacement is becoming integral to current political identity and conflicts over democratic boundaries. It shows that climate change is not only adding to migration pressures, but also to political opportunities to draw lines about who is in and who is out. What this means is important. What populism is all about is the building of "the people"—and in the future, climate change will be a major factor in the picture of "the people. Debating emissions, adaptation, and environmental governance will thus be a part of the politics of the climate age, but so too will be debates over citizenship itself.

Class, industrialization and social redistribution were significant issues of the twentieth century. The first decade of the twenty-first century has seen globalization, migration and national identity come into conflict. Climate citizenship is likely to become a recurring battle in the next decades. Democracies are now at a pivotal point where they must decide whether climate insecurity strengthens their pursuit of exclusion or provides a moment to reconsider political belonging on the basis of ideas of justice, solidarity and shared fragility.

The future of democracy in a climate-changed world will ultimately depend not only on how societies respond to environmental transformation, but on how they answer the most basic political question of all: who belongs?

References

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