Carl Icahn has called on the EPA to make changes to a market for renewable fuel credits or else risk “the mother of all short squeezes” that could bankrupt refiners, including ones that uncle Carl owns. The letter is repetitive as Carl himself admits but he gets it down to five points after 2,500 words or so. ValueWalk has obtained the full letter which Icahn wrote to the regulators. Susan Gordon a spokesperson for Icahn did not immediately respond for a request to comment. The letter was first reported by Laura Blewitt and Zachary Mider of Bloomberg News earlier today. See the…