"It is much easier for God to get through our defenses when we're in a wilderness," says John Lionberger. He leads kayak and canoe trips that he says "get to the transcendent through the physical."

Science and religion are sometimes at odds over the environment, but one prominent biologist is pleading for both to work together in order to protect the earth's biodiversity -- the many species of plants and animals that scientists say are at risk. E.O. Wilson is the author of a recent book, THE CREATION. He spoke with Bob Abernethy.

Read more of Bob Abernethy's October 16, 2006 interview in Cambridge, Massachusetts with E.O. Wilson.

Read an excerpt from THE CREATION: AN APPEAL TO SAVE LIFE ON EARTH by E.O. Wilson (Norton, 2006), written in the form of a letter to a Southern Baptist pastor.

"I think that there is, in Celtic spirituality, a rhythm of seeing, which can alter the way that one approaches the world," says Irish poet and theologian John O'Donohue.