Brother Earth: Nature, God, and Ecology in a Time of Crisis (1970).

The Travail of Nature: the Ambiguous Ecological Promise of Christian Theology (1985)

Nature Reborn: the Ecological and Cosmic Promise of Christian Theology (2000)

Ritualizing Nature: Renewing Christian Liturgy in a Time of Crisis (2008)

Before Nature:  A Christian Spirituality (2014)

Behold the Lilies: Jesus and the Contemplation of Nature (2017)

Celebrating Nature by Faith: Studies in Reformation Theology in an Era of Global Emergency (2020)