Stock Photo - 29 June 2022, Brandenburg, Potsdam: Ralf Kreutz, head of the Sanssouci Park, stands in the palace park and points during a press conference to old trees that can no longer withstand the drought and whose crowns are withering. The old tree population is acutely threatened by several climatic factors, especially drought and heat. The old tree population, but also younger trees are highly endangered and partly die. In addition, the so-called summer break occurs. Despite regular tree control, visitors should therefore be careful. During intense heat, it is not advisable to seek shade under an old tree. Photo: Annette Riedl/dpa/ZB. - Potsdam/Brandenburg/Germany