"Cirrus clouds are delicate and often transparent, forming a variety of shapes composed of fine ice crystals. Meteorologically, contrails, which form bands of ice crystals in high layers of air, are of the same cloud type. However, aircraft-induced cloud formations compete with natural cirrus formation. Contrails and clouds that develop from contrails do not simply overlay a natural background; rather, during periods of heavy air traffic, they take the place of natural cloud formation. The photo book 'Cirren' by German photo artist Angela SCHWANK deals with the past, present and future of the visible sky in the form of different world perspectives.
The photo book 'Cirren' by German photo artist Angela SCHWANK contains photographs and drawings showing the diversity of cirrus and other high altitude cloud forms as well as the anthropogenic transformation of their appearance. The photographs and drawings are negative images. The cloud photographs were taken in Vienna and the surrounding area, as well as in the Netherlands, during the corona pandemic of 2020/21, when air traffic was greatly reduced and at times almost stopped, and in 2019, when air traffic was heavy." (© AnzenbergerEdition, 2021)