According to the biblical creation story, God entrusted humans with the responsibility for the environment: "And Lord God took the man and placed him in the garden of Eden, to till it and tend it" (Gen 2:15). Since the environmental movement of the 1980s, Jewish sources and their interpretations have also been used to advocate for ecology and the environment from a Jewish perspective. In the course of "eco-kashrut," the traditional rules and halachot for kosher food are expanded to include ecological regulations in the sense of tikkun olam, the repair of the world. For example, for meat to be "eco-kosher," the animal must not only be ritually slaughtered in the traditional sense and the blood removed. The circumstances under which the animal lived before slaughter also play a role - in other words, animal welfare, enough space to move, the feed components, and the design of cattle transport. In this way, the traditional kashrut is supplemented by modern organic standards. The lecture will use examples to show how Jewish ecological initiatives contribute to combating climate change.