Dr. Matthew Sleeth occupies an unusual — or diverse — role in contemporary America. He's trained as a doctor. But in the latter part of his life, he began to explore his faith as Christian. Specifically, he sought to understand the connection between the Bible and protecting the environment. In his books like, "The Green Bible," he argues that Christian morality is aligned with conservation and environmentalism. He's speaking Saturday (Oct.13) at the "Healthy Food, Local Farms" conference here in Louisville.We spoke in depth about his work.