Sebastian Seiffert’s birthday is September 23, 1979, the last day of the first-ever world climate conference – so it is fitting that the professor for physical chemistry of polymers is committed to climate action. And he has done so successfully that he was now honored for it on April 25: With the Ars-Legendi Faculty Award 2023 for excellent university teaching in the chemistry faculty. The award is primarily for the interactive teaching of the professor at the Johannes Gutenberg University in Mainz.