Catherine Keller is George T. Cobb Professor of Constructive Theology in the Theological School and Graduate Division of Religion at Drew University. Recent books include Cloud of the Impossible: Negative Theology and Planetary Entanglement ; On the Mystery: Discerning Divinity in Process ; Face of the Deep: A Theology of Becoming ; and Ecospirit: Theologies and Philosophies of the Earth (Fordham).