By Martin Baccardax U.S. crude prices fell below the $100 mark for the first time since early May Tuesday, setting up a near-term tumble for domestic gas prices – but further cementing the case for a near-term recession. Global oil prices plunged the most in several weeks Tuesday as investors pared bets on crude and commodities demand amid increasing signs of recession in the world’s biggest economy. The commodity price slump, which pulled copper prices to the lowest in more than nineteen months, came amid a so-called inversion of the U.S. Treasury bond yield curve, a condition which occurs wh…