Environmental disasters can force people out of their homes and communities, complicating responses to ongoing humanitarian protection efforts. As a result, many humanitarian organizations have started paying attention to the impacts of climate change for multiple aspects of their refugee protection work. For this episode, we speak with Joan Rosenhauer, the executive director of Jesuit Refugee Service/USA, about how natural disasters and other environmental harms affect her organization’s work and its faith-based mission.

The UN migration agency, the International Organization for Migration (IOM), in 2015 created a special division responsible for migration-related issues involving the environment and climate change. The division just got a new leader and is looking to embark on a new agenda. This episode of the podcast features a discussion with new division head Manuel Marques Pereira, who talks about his office’s role and priorities in dealing with migration shaped by climatic events. 

Global warming and extreme heat are behind many of the phenomena linked to climate change. Hotter weather also has an impact on migration and on migrants, particularly in destinations such as the Middle East and parts of the United States. In recent years, there has been more attention paid to cases of migrant workers dying from the heat. In this episode, we speak with Tord Kjellstrom, a physician and researcher who has closely studied the relationship between extreme heat and population health, about what extreme heat means for migrants.

In Western countries, a common narrative has developed that only poor or developing nations will have to confront human displacement caused by climate change. But communities in the United States and elsewhere have repeatedly moved because of environmental disasters such as flooding. This episode features a discussion on the U.S. government’s responses to internal displacement, with Kavi Chintam and Chris Jackson, co-authors of an Issues in Science and Technology article analyzing the approach to managed retreat.

Technically, people forced to move because of climate disasters are not considered “refugees.” But the UN refugee agency, the UN High Commissioner for Refugees, still takes climate issues into account, and since 2020 Andrew Harper has been its special advisor on climate action. We talked with Harper about his agency’s role in responding to climate issues, which regions of the world are most likely to be affected by climate impacts, and why climate is a “vulnerability multiplier” for refugees.

Popular discussions usually frame climate change-induced migration negatively, often as a strategy of last resort. But migrating abroad can also be an effective way to build resilience against the impacts of climate change. This episode discusses how migration can bring social, economic, and other benefits to migrants and their communities, in conversation with University of Vienna human geographer Harald Sterly.

Hundreds of thousands of migrants have left Central America in recent years, and climate extremes have been identified as one of the factors that might be driving this movement, along with elements such as political instability and violence. In this episode, we hear from geographer and climatologist Diego Pons, of Colorado State University, to dissect how changing climate, food insecurity, and migration intersect in this region.

Climate change and international migration both are global issues with aspects that countries try to manage through treaties, pacts, and other types of agreements. But most of the global governance frameworks that exist for climate-induced migration require only voluntary commitments by states. This episode features a discussion with political scientist Nick Micinski, author of the forthcoming books, UN Global Compacts: Governing Migrants and Refugees and Delegating Responsibility: International Cooperation on Migration in the European Union.

Among the earliest examples of the disruptions that climate change can bring, some low-lying island countries in the Pacific Ocean are facing serious threats from rising sea levels and coastal erosion. Over the long term, atoll nations such as Kiribati, Tuvalu, and the Marshall Islands might eventually need to relocate some or all of their populations. But not everyone wants to migrate, and governments have balanced supporting people who relocate with other ways of adapting to changing conditions. Carol Farbotko, of Australia’s University of the Sunshine Coast and the University of Tasmania, joins the podcast to discuss the policies and dynamics in place in this region.

Climate change is already affecting how, whether, and where people migrate. But environmental change is likely to become more extreme in the coming decades, unless the world takes serious action now. How might changes made now impact what future migration looks like? This episode features a conversation with Robert McLeman, a geographer and environmental studies expert at Canada’s Wilfrid Laurier University, about the possible scenarios that lie ahead for the relationship between climate change and migration, depending on how countries act in the next few decades.

Reliable access to food—or lack thereof—can affect an individual’s decision to migrate. Climate change has the ability to exacerbate food insecurity, especially for farmers and others who live off the land, which can have repercussions for human mobility. In this episode we talk with Megan Carney, an anthropologist and director of the University of Arizona’s Center for Regional Food Studies, to examine the role of food security in the connection between climate change and migration.

Billions of dollars are being spent on projects to help communities mitigate and adapt to the impacts of climate change, including those at risk of being displaced by environmental events. This episode features Timo Schmidt, from the Migration Policy Institute Europe, in a discussion about the growing field of climate finance and its implications for migration management and displacement prevention.

Confronting environmental change, whole communities sometimes relocate from one area to another. This purposeful, coordinated movement, while currently rare, is referred to as managed retreat. In this episode Architesh Panda, from the London School of Economics’ Grantham Research Institute on Climate Change and the Environment, explains how this climate adaptation strategy works in India.

There are a lot of predictions about how many people will migrate in response to climate change. Depending on where you look, the next few decades could see hundreds of millions – or even more than a billion – people pick up and move. We asked Julia Blocher, of the Potsdam Institute for Climate Impact Research, to explain why the predictions vary so much. We also discussed how this movement can lead to conflict.

The relationship between climate change and migration is long and complex. Human civilizations have been affected by environmental conditions for centuries, but we should be wary of arguments that huge numbers of people are inevitably destined to migrate in response to specific climate threats. In this episode, we chat with Alex de Sherbinin of Columbia University’s Center for International Earth Science Information Network about what the research shows – and doesn’t show.

While climate change and migration remain high on political agendas in Europe, the exact link between the two remains uncertain. Without clarity on how different climate events might lead to more human mobility (or conversely, immobility), it is difficult for migration policymakers and development actors to align their efforts and ensure they are spending resources wisely. Investments in climate adaptation, for instance, which aim to build communities’ resilience to cope with environmental stress, have only recently begun to take human mobility into account. And so far, adaptation activities make up only a small part of Europe’s formidable climate spending.

The COVID-19 pandemic only adds to the urgency of finding innovative financing tools for climate adaptation and migration. Many of the adaptation strategies policymakers previously applied to support communities affected by sudden-onset floods or slow-onset desertification are now obsolete, for example as physical distancing requirements have complicated evacuation and relocation. And because the issue cuts across different policy portfolios, it is difficult to assign clear responsibilities. 

This MPI Europe discussion, with MPI Europe's Hanne Beirens, University of Liège's François Gemenne, GIZ's Dorothea Rischewski, and the European Investment Bank's Moa Westman, explored different migration policy options related to climate adaptation and the evolving landscape of climate finance tools. Speakers also examined what funding gaps and opportunities exist for collaboration with partner countries and what funding instruments might address the most pressing needs. The conversation also explored the implications of COVID-19 for migration and climate adaptation funding approaches.

This MPI event, in partnership with the International Organization for Migration (IOM), discusses the critical issue of climate-related displacement in the Asia-Pacific region, explored in depth in the joint MPI and IOM brief Human Rights, Climate Change, Environmental Degradation and Migration: A New Paradigm. Climate change and environmental degradation are predicted to displace millions of people in the coming years, either directly or indirectly. While today’s international legal framework provides a degree of protection to those displaced by environmental factors and climatic events, there is no global consensus on a definition for such a group. In the absence of this, gaps in the legal system, and in implementation, how can recognition of the vulnerability of environmental migrants be facilitated and their protection ensured? This discussion explores how to protect climate change-induced migrants, particularly in the highly vulnerable Asia-Pacific region.