I've observed some young-earth creationists attempt to link the worldwide flood of Noah's day with melting icebergs. While not critical of the science behind such an explanation, I would really like to know why young-earth creationists, in addition to a strictly literal approach, don't also leave any room for miracles in their explanations of things that are commonly regarded as miracles. Why don't they say at least "I don't know" instead of creating the faulty science?