Diesel From Natural Gas Could Cut Smog

The rat’s nest of pipes and columns snaking across the desert harbors a secret process that will use cobalt to turn natural gas into a powerful, clean-burning diesel fuel. By next year, rulers of this tiny desert sheikdom hope, these gas-to-liquids (GTL) reactors under construction will bring in billions of dollars while clearing big city smog belched by trucks and buses.
ABC News