In this episode we interview the German astronomer and climate activist, Dr. Leonard (Leo) Burtscher. Leo is a staff scientist at the observatory of Leiden University as well as active in the German skeptics, GWUP. He studies active galactic nuclei in Leiden since 2017 and communicates his research to younger and older audiences. He is also informing the public about the climate crisis in his spare time as a co-founder of the grass-roots movement Astronomers for Planet Earth.

Enjoy!