Jewish ecological discourse has shown that Judaism harbours deep concern for the well-being of the natural world. However, the movement has not articulated a Jewish theology of nature, nor has it submitted the sources of Judaism to a systematic, philosophical examination. This volume intends to contribute to the nascent discourse on Judaism and ecology by clarifying diverse conceptions of nature in Jewish thought and by using the insights of Judaism to formulate a constructive Jewish theology of nature. The 21 contributors consider the Bible and rabbinic literature, examine the relationship between the doctrine of creation and the doctrine of revelation in the context of natural law, and wrestle with questions of nature and morality. They look at nature in the Jewish mystical tradition, and they face the challenges to Jewish environmental activism caused by the tension between the secular nature of the environmental discourse and Jewish religious commitments.