No one solution will work for every energy problem the world faces. But solutions that are clean, sustainable, renewable, home-grown, and cost-effective are likely to find government support and marketplace acceptance.
A nation’s security interests will also influence policy and practice: for example, the need for less dependence on OPEC oil.

Fearless forecast: liquid fuel will continue to power more and more vehicles in the next two decades, and the renewable liquid fuel that will replace more and more gasoline/petrol will be ethanol.

Right now about 600 million motor vehicles crowd the world’s roads. By 2030 demand will rise to an estimated 1,200,000,000 cars. The demand for ethanol, including cellulosic, is expected to gain an increasing share of the fuel demand, rising to nearly 5% of the total.

In the U.S. alone, the market is huge. And includes at least 16 billion RFS-mandated gallons of cellulosic biofuels a year by 2022. Industry experts anticipate 60 billion gallons of biofuels by 2030.

How much of this will be The New Ethanol is impossible to say. Part of the answer may depend on what you do next.