Major grants for research into the impact of climate change on health

How is people’s health affected when heatwaves, air pollution and floods occur at the same time or in close succession? And how can society reduce health risks in a changing climate? Researchers at the Institute of Environmental Medicine, Karolinska Institutet, have been awarded a total of SEK 59 million by the Formas research council for two new research initiatives on climate and health.
The two initiatives, Cascades and Spira, are led by Petter Ljungman, associate professor at the Institute of Environmental Medicine, Karolinska Institutet, and senior cardiologist at Danderyd Hospital. The projects will both increase knowledge about the health risks of climate change and help develop measures that protect people’s health.

“These two grants complement each other. Cascades examines the scale of the health risks and who is most severely affected. Spira is about how we can translate that knowledge into concrete measures in areas such as spatial planning and healthcare,” says Petter Ljungman.
When climate-related events coincide
In the Cascades project, researchers will examine how people’s health is affected when several extreme climate- and weather-related events occur at the same time or in close succession. This could involve, for example, repeated heatwaves or periods with both high temperatures and air pollution.
Using national registers covering around ten million people, the researchers will study links with cardiovascular diseases, respiratory diseases and mental ill health. They will also identify particularly vulnerable groups and examine whether current climate adaptation measures reach those who need protection the most.
From research to social change
The second initiative, Spira, is a new research centre that will address a central question: How can society make climate transitions while protecting and promoting health, and use health as a unifying force for action?
The research covers, among other things, how health can be integrated into climate policy, how residential areas can be designed to promote both health and the climate, and how children’s and young people’s food environments can be changed. Another area is how healthcare can adapt to climate change while also reducing its own climate impact.
“For healthcare, the research could, for example, provide better knowledge about which patients are at greatest risk during a heatwave and what measures are needed for healthcare services to be better prepared,” says Petter Ljungman.
Both initiatives are being carried out in collaboration with other universities and social actors. By combining research on health risks with the development of preventive measures, the aim is to contribute to a society that is both better equipped for climate change and promotes people’s health.
Facts about the research initiatives
Cascades – SEK 9 million (2026–2030)
Examines the health effects of multiple simultaneous or consecutive climate-related events. The research is carried out in collaboration with Örebro University and KTH.
Spira – SEK 50 million (2026–2030)
A new research environment focusing on health in the climate transition. The collaboration includes Karolinska Institutet, KTH, Stockholm University, the National Board of Health and Welfare, the Public Health Agency of Sweden, Region Stockholm, Pep Kommun, Lif, Youth 2030 Movement and UNICEF.
Both initiatives are funded by Formas’ national research programme on climate.
Four more KI projects have received funding from Formas’ climate programme
- Jenny Selander, Institute of Environmental Medicine, has been awarded SEK 8 917 836 for the project “Heat, cold and cardiovascular disease: occupational health risks in a changing climate.”
- Fabian Lenhard, Department of Clinical Neuroscience, has been awarded SEK 8 957 445 for the project “Climate action and health benefits: a randomised study of a digital intervention for sustainable and health-promoting lifestyle habits”.
- Miriam Hartmann, Department of Global Public Health, has been awarded SEK 8 264 016 for the project “STRIVE: short-term temperature risks and evidence on interpersonal violence in Swedish preparedness”.
- Daniel Helldén, Department of Global Public Health, has been awarded 5 995 364 for the project “Climate-related environmental exposures and children’s health: extreme heat and air pollution in a changing world”.