With its annual report Gas-Union underlines its commitment to a sustainable use of natural resources. Individual editions present works by photographers that deal with the impact of human life on the natural environment. The 50th annual report contains images of spectacular mountain formations by Edi Szekely. Only on closer inspection does the viewer notice that these landscapes devoid of humans are in fact the product of technology. The aesthetic symbiosis of nature and technology is also emphasised by the design concept which combines natural paper with illustration printing paper.