What is the role of biodiversity and how has the perception of biodiversity changed in the course of the last 30 years? In his evening lecture “Biodiversity – Impact and Change”, the biologist Prof. Dr. Christian Wirth will provide answers to these and other questions. This lecture will take place as part of the Leopoldina’s Annual Assembly on Friday, 24 September, in Halle (Saale)/Germany and will be streamed live.