According to Wired magazine, Coskata, a start-up in Illinois, backed by General Motors, claims it can make ethanol for US $ 1 per gallon, and using any bio-matter, not just corn.
But let us hope the move to transform natural landscapes into biofuel farms does not make our carbon emission position worse, as this report suggests.
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Google is planning to put some of its vast fortune behind alternative energy technologies, according to this Reuters report.

“The Internet search giant, which has said it will invest in researching green technologies and renewable-energy companies, is eager to help promising technologies amass scale to help drive the cost of alternative energy below the cost of [...]