Changing Climate, Changing Migration

The Arctic region is warming much faster than other parts of the world. Nordic countries—Denmark, Finland, Iceland, Norway, and Sweden—have a reputation for being at the forefront of efforts to combat climate change. But does their track record also extend to helping people who have been displaced by environmental impacts, internally and internationally? In this episode, we discuss the impacts and responses in the Nordic region. Our guests are the researchers Miriam Cullen and Matthew Scott, who are among the leaders of the Nordic Network on Climate Related Displacement and Mobility.

Climate change is remaking vacations, particularly in hot months. Extreme heat can be deadly for tourists and events such as wildfires, hurricanes, and sea-level rise can devastate tourism-dependent communities. Tourism is also a major contributor to climate change, and some travelers have begun rethinking their plans, taking emissions into account as they consider transportation and destinations. This episode explores how climate change is affecting global tourism. Our guest is Daniel Scott, research chair at the University of Waterloo’s Department of Geography and Environmental Management and an international research fellow at the School of Hospitality and Tourism at the University of Surrey.

Floods and other fast-moving natural disasters are becoming more common and more severe because of climate change. When these disasters strike, they can displace huge numbers of people. This episode turns to Brazil, where historic flooding in 2024 forced hundreds of thousands of people from their homes. Our guest is Valéria Emília de Aquino, a human-rights lawyer and researcher in Brazil.

The U.S. military has long warned that climate change poses a challenge to global security. Instability and insecurity can be a result of unmanaged migration, with the potential for widespread climate displacement creating tensions in host communities. And they could also spark additional migration, if people flee precarious political dynamics. This episode, with Climate Migration Council member and retired U.S. Navy Pacific Fleet Commander Admiral Scott H. Swift, evaluates the security dynamics of climate change and migration, focusing on the Pacific.

Do countries that are major polluters have a moral responsibility to aid people displaced by hurricanes, sea-level rise, and other events driven or exacerbated by climate change? What form might that responsibility take? For this episode, we are joined by Jamie Draper, who focuses on political philosophy and ethics at Utrecht University. While he argues that certain countries do have a responsibility to aid displaced people, labeled “climate migrants” by some, in his view that does not necessarily translate to offering them protection.

The world is grappling with the idea of restitution for people who have been negatively affected by the impacts of climate change—potentially including displacement within a country or across international borders. World leaders are at the early stages of creating a global loss and damage fund to financially compensate these climate victims. Much remains unresolved, including complicated and controversial questions about which countries owe money to whom, and how to attach a dollar figure to intangible losses such as destruction of natural land. In this episode, we speak with Adelle Thomas from Climate Analytics to wade through the thicket of challenges ahead, in particular as relates to climate migrants—those displaced by hostile environmental conditions linked to a rapidly changing climate.

Many people are leaving rural mountain areas around the globe because their livelihoods are becoming less profitable and the threat of landslides and other disasters is increasing. As the impacts of climate change grow, these mountain residents may face additional challenges dealing with environmental disruption. And by moving to urban areas, they may face a new set of issues and lose connection with their homelands. In this episode, we speak with Amina Maharjan from the International Centre for Integrated Mountain Development about the unique climate migration issues that are witnessed in mountain regions.

A landmark climate migration deal inked in late 2023 would allow hundreds of climate-vulnerable residents of the small island nation of Tuvalu to move to Australia. The pact is the latest step for a region that is at the leading edge globally in policy experimentation to address climate displacement. This Australia-Tuvalu deal, which is not uncontroversial, follows a brief and ultimately shelved attempt by New Zealand to create a “climate refugee” visa. How are these policies playing out, and what can the rest of the world learn from the Pacific experiences? This episode features renowned legal scholar Jane McAdam, who directs the Kaldor Centre for International Refugee Law at UNSW.

Migration is complex, and rarely is there only one single factor that prompts people to leave their homes. That is especially true when climate change is involved, since its impacts on internal and international migration are often indirect and hard to trace. So when we talk about climate migration, what exactly do we mean? And why is the distinction important? Kerilyn Schewel, co-director of Duke University’s Program on Climate-Related Migration, joins this episode of the podcast to help make sense of the terminology and why it matters.

Can climate-driven international migration pose a security threat? Former U.S. Homeland Security Secretary Michael Chertoff thinks so, but not necessarily because of the migrants themselves. Irregular migration prompted by climate events can empower smugglers and criminal groups. And it can spur an extremist backlash in receiving countries if people feel their government is not adequately protecting them. Chertoff talks about the security implications of climate change and migration in this episode of the podcast.