Lives Per Gallon, The True Cost of Our Oil Addiction by Terry Tamminen. Since we have eliminated lead from gasoline, lead in the environment has decreased and the crime rate has fallen. The connection, fewer children growing up with lead-caused disabilities. However, lead in the environment is still a problem, witness the crisis in Flint, Michigan, in the drinking water. Other persistent problems continue to exist; one such problem is the lead in jet fuel. Jet fuel could be made safer, but the airlines resist the cost of engine modifications.