suspected of challenging with food production.‘’ As a potential biofuel, this is essentially gold dust,’’ says Dr Fernie.“ It grows not only on marginal land but land that is completely ruined for agricultural use.” In South Africa, at least, it won’ t be food-versus-fuel, but fuel-versus-smokes – and Solaris could also be used in rotation on the 70,000 hectares of cotton plantations in the country, says Dr Tommasini.