H. Paul Santmire has been a leader in the field of ecological theology for more than forty years. Ordained in the Evangelical Lutheran Church in America (ELCA), he is the author of Ritualizing Nature: Renewing Christian Liturgy in a Time of Crisis (2008), Nature Reborn: The Ecological and Cosmic Promise of Christian Theology (2000), and The Travail of Nature: The Ambiguous Ecological Promise of Christian Theology (1985), all from Fortress Press. His study, Brother Earth: Nature, God, and Ecology in a Time of Crisis is widely regarded as a pioneering classic.