The Rev. Dr. H. Paul Santmire is a historian and pastoral scholar in the disciplines of ecological theology, environmental ethics, and Christian liturgy and spirituality. Since before the first Earth Day over 50 years ago, he has been addressing ecological and justice issues from a Christian theological perspective. His works include Brother Earth (1970), The Travail of Nature (1985), Nature Reborn (2000), Ritualizing Nature (2008), Before Nature (2014), Behold the Lilies (2017), and Celebrating Nature By Faith (2020).