[4] In 2007 his dissertation on "Structuring Descriptive Data of Organisms – Requirement Analysis and Information Models" was completed at the University of Bayreuth.

[3] He played a major role in the development of a data standard for describing gender within the Taxonomic Databases Working Group.

[6] Since 2013, Hagedorn has been working at the Museum of Natural History Berlin, first as Head of Digital World and Information Science (until 2016), then as Academic Director.

[14] The key authors also published a similar statement in Science with scientists from the United States, including Michael Mann and Katharine Hayhoe.

[15] Hagedorn represented Scientists for Future at an environmental meeting with the German Federal President Frank-Walter Steinmeier in early 2020.