Ernst Paul Dörfler, born in 1950 in Kemberg near Lutherstadt Wittenberg, holds a doctorate in ecochemistry. His book »Back to Nature?« (1986) became a cult book of the East German environmental movement. He has been awarded numerous prizes, including the EURONATUR Prize of the European Natural Heritage Foundation. In 2019, his book »Nestwärme. What we can learn from birds« was published.