Technical Comments

Response to Comment on "Carbon-Negative Biofuels from Low-Input High-Diversity Grassland Biomass"

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Science  15 Jun 2007:
Vol. 316, Issue 5831, pp. 1567
DOI: 10.1126/science.1140365

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We discovered that biofuels from low-input high-diversity mixtures of native perennial prairie plants grown on degraded soil can provide similar bioenergy gains and greater greenhouse gas benefits than current corn ethanol produced from crops grown in monoculture on fertile soil with high inputs. Russelle et al.'s technical concerns are refuted by a substantial body of research on prairie ecosystems and managed perennial grasslands.

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