A tribute to Peter Hupfer's 90^th birthday

The development of science in the former German Democratic Republic (GDR) experienced some disruptions with the reunification of Germany. Nevertheless, it was possible to maintain a certain continuity in climate research, which can be seen as a personal merit of Prof. Dr. PETER HUPFER. The development of climate research from the 1950s to the present and his part in it will be acknowledged in the present article.