Swiss Academy of Sciences SCNAT
Pollen allergy and the impact of a changing climate
While hay fever was almost unheard of in Switzerland 100 years ago, at present, around 20 percent of the Swiss population suffers from pollen allergy. Importantly, climate change is causing an earlier onset and increased intensity of the pollen season for many allergenic plants. Climate change also fosters the spread of highly allergenic invasive plants like ragweed. Furthermore, the combined exposure to air pollution and pollen may worsen allergic reactions through increased sensitivity and increased pollen allergenicity. Scientists of the Swiss Commission for Atmospheric Chemistry and Physics provide an overview of pollen, hay fever, and how climate change is affecting both.
Eeftens M, Tummon F (2024) Pollen allergy and the impact of a changing climate. Swiss Academies Factsheets 19 (1)
Swiss Academies of Arts and Sciences a+
Lighthouse Programmes in Sustainability Research and Innovation
Wuelser G, Edwards P (2025)
Lighthouse Programmes in Sustainability Research and Innovation
Swiss Academies Reports 20 (4)Swiss Academies of Arts and Sciences a+
Ethical guidelines for animal experiments
The Swiss Animal Welfare Act permits the use of animals for certain scientific purposes; at the same time, however, it requires that the dignity of animals be respected and their welfare protected. For researchers, reconciling these various societal interests can be challenging. The ethical guidelines for animal experiments (2025) are designed to clarify the margin of discretion left by the legislation and to encourage researchers to reflect on the handling of animals in their experiments. The decisive factors for updating the previous version from 2005 were new scientific knowledge and research methods on the one hand, as well as changes in the legal framework on the other.
