Tennessean: When the Rev. James Merritt wants to talk about the environment, he does what any good Baptist preacher would do. He picks up the Bible. “The first assignment that God gave to Adam was to take care of the Garden,” said Merritt, who was president of the Nashville-based Southern Baptist Convention from 2000-02. “As far as I know, that job has never been revoked.” While most Christian ministers agree that human beings are to care for creation, they disagree on the details. That’s …