The Achilles' Heel of Algal Biofuels - Peak Phosphate. - An Update.: " It seems quite clear that with food production already stressed, the production of (algal) biofuels will never be accomplished on a scale anywhere close to matching current world petroleum fuel use (> 20 billion barrels/annum)27. Thus, the days of a society based around personalized transport powered by liquid hydrocarbon fuels are numbered. We must reconsider too our methods of farming2, to reduce inputs of fertilisers, pesticides and fuel. Freshwater supplies are also at issue2, in the complex transition to a more localised age that uses its resources much more efficiently."
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