Ethanol may have lost on a technicality, but it still dominates the alternative-fuel discussion. It's easy to find flaws with the Renewable Fuel Standard, which mandates the use of ethanol and biodiesel in transportation fuels, but there's no debating that it has thrust the renewable fuel into the energy mix virtually overnight.
With or without a bill for mandated electric-vehicle use, Tesla's plan to disrupt the global auto business has yielded spectacular results. But giant competitors are already moving to disrupt Tesla. Will the company be able to fend them off?