IPS: A surprisingly small number of scientists have studied the impacts of the oil spill resulting from the 1979 blowout at the Ixtoc I oil rig in the Gulf of Mexico. Wes Tunnell, who first studied the spill’s effects in July and August of 1980 and has returned many times since, is one of the few exceptions. Days after speaking to IPS in June, he flew back to Veracruz to see what remnants, if any, are still present from the disaster – the largest accidental oil spill in history before the …