Jens Jetzkowitz is a sociologist working and teaching at the Helmut Schmidt University in Hamburg, Germany, with expertise in sustainability research, environmental sociology and, the sociology of culture and religion and methods of empirical social research. Currently he is collaborating with the Natural History Museum in Berlin, Germany. Central issues of his research concern how people give meaning to the social and biophysical world and how they draw consequences from of it. To answer these questions, he has studied a variety of research areas, e.g. biodiversity, agriculture, tourism, lifestyles, inequality and social change.