Gore once claimed the biblical story of Cain and Abel was a parable about the dangers of pollution. Not original sin, not murder, not envy: pollution. "Indeed," he wrote in his magnum opus, Earth in the Balance, "the first instance of 'pollution' in the Bible occurs when Cain slays Abel." According to Gore, God was hopping mad about Cain polluting. Cain had "defiled the ground" with Abel's messy blood. Murder is one thing, but polluting really got God's goat. In Gore's view, the Bible inveighs against global warming and the internal combustion engine, but has nothing of any relevance to say on the matter of killing the unborn.
When pressed by the New York Times to expand upon his singular interpreation of the Cain and Abel story, Gore explained that God's original rebuff of Cain's offering of the fruit of the ground (which set off Cain's murderous jealousy - and the first recorded case of pollution) was simply "a metaphorical reference to the move from a herding to an agricultural economy."
Never mind that the "defilement" mentioned in Genesis is spiritual rather than physical. With tripe like that, it's not hard to see why Gore flunked out of Vanderbilt Divinity School.