New York Times: As a relentless drought bakes prairie soil to dust and dries up streams across the country, ranchers struggling to feed their cattle are unloading them by the thousands, a wrenching decision likely to ripple from the Plains to supermarket shelves over the next year. Ranchers say they are reducing their herds and selling their cattle months ahead of schedule to avoid the mounting losses of a drought that now stretches across a record-breaking 1,016 American counties. Irrigation ponds are shriveling…