If our planet Earth is to continue feeding us in the future, rich countries must significantly reduce their meat consumption – ideally by at least 75 percent. This is the conclusion of a new study by the University of Bonn. The study reviews the current state of research on various aspects of meat consumption. In addition to the effects on the environment and climate, these include health and economic effects. A conclusion of the researchers: Eating meat in small amounts can be quite sustainable. The results are published in the journal Annual Review of Resource Economics.