In the past 18 months, the rush toward biofuels as the new green alternative to fossil fuels has come to something of a juddering halt, writes Mark Rowe. Concerns over just how green they are and the implications of growing crops for energy rather than food have led to the UN, major energy companies, scientists and environmental organisations looking beyond the first generation of biofuels. One of the embryonic, but expanding, sectors is that of synthetic fuels.
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