A Canadian company has developed a new, more efficient process to make the alternative fuel ethanol from farm waste. With today's high oil prices, experts hope the new technology could reduce demand on fossil fuels and increase energy security. "In the past, ethanol fuel use has been limited, because the cost of production was too high," said Jim Easterly, a Washington, D.C.-based bioenergy consultant. "Ethanol produced from corn kernels and wheat grain has historically been more expensive than gasoline produced from oil." Producing corn-based ethanol, for example, uses energy from oil and electricity for everything from growing the corn to...