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Editorial
Nature 444, 654 (7 December 2006) | doi:10.1038/444654a; Published online 6 December 2006
Green shoots of growth
Until the twentieth century, biomass was humanity's principal source of energy, heating our stoves and feeding our draught animals. Even today, roughly 10% of all our energy comes from biomass — far more than from any other renewable energy source or, for that matter, from nuclear fission.
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