Universities claim to be innovative and to enable their students to help shape the world of tomorrow responsibly. By far the most important – as simply existential – challenge of this century will be the rapid and consistent anchoring of sustainability in all areas of life. Only in this way can we preserve the chance to limit the consequences of man-made climate change to a tolerable level and to stop the progressive environmental degradation. Universities, as key drivers of innovation in society, have a particularly important task and role model function to face this challenge. But what makes up a “green university”? What significance does sustainability have in everyday student…