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Article History

Received: 23 April 2024

Accepted: 8 July 2024

First Online: 18 July 2024

Declarations

:

: The study protocol was reviewed and approved by the Ethics Committee of the Medical Faculty of Heidelberg (S-629–2022). The protocol was registered at the German Clinical Trial Register (reference: DRKS00032620).

: All authors had full access to all the data in the study and had final responsibility for the decision to submit for publication.

: CZ, AH and CQ are employed by the KLIOL project, which is funded by the Federal Ministry of Economic Affairs and Climate Action (BMWK). The BMWK had no influence on the study.  AH and CQ received honoraria for developing a training on climate-sensitive health counselling from the Institute for continued medical education in general practice (Institut für hausärztliche Fortbildung). AH and CQ are members of the ‘German Alliance Climate Change and Health’ (Deutsche Allianz Klimawandel und Gesundheit e.V., KLUG) where they do not receive payments. ID received an honorarium for a lecture at the Charité – Universitaetsmedizin Berlin, support for attending the World Health Summit 2023 by Abbott Center for Malnutrition Solutions and holds the position of chair of the Working Group ‘Diabetes and Migration’ of the German Diabetes Association (DDG). LH received funding from “Heidelberg Graduate School of Global Health” by the Else-Kröner-Fresenius-Stiftung, honoraria for presentations by the Dr. Rainer Wild Stiftung and the Stadt-Heidelberg-Stiftung together with the Graduate Academy of Heidelberg University and Heidelberg Center for the Environment and is employed by the European Distance Learning University (Europäische Fernhochschule Hamburg) for a textbook on sustainable nutrition. LH participated in the student groups ‘Health4Future Münster’ and BundJugend AK ‘Global Health and Migration’. AH received research funding for a postdoc position on a sustainable weight loss trial in Burkina Faso by the Robert-Bosch Foundation and received honoraria for invited talks at Medical Chambers in Germany (Landesärztekammer Bayern, Apothekerkammer Hessen, Bezirksärztekammer Nord-Württemberg) and German University Clinics and other Hospitals (Charité Berlin, Uniklinik Erlangen, Barmherzige Brüder Trier). AH is on the advisory board and participates in the expert panel of the research project “RESILARE” of the AQUA Institute (funded by the German Innovation Fund by the G-BA (the Federal Joint Committee of Physicians, Dentists, Hospitals and Health Insurance Funds in Germany). AH is speaker of the section ‘Climate change and health’ of the German Society of General and Family Medicine (DEGAM) and a DEGAM board member and receives no payment for this role. GF and BF state no conflicts of interest.