Biofuels done right: Land efficient animal feeds enable large environmental and energy benefits

Bruce E. Dale, Bryan D. Bals, Seungdo Kim, Pragnya Eranki

Research output: Contribution to journalArticle

  • 65 Citations

Abstract

There is an intense ongoing debate regarding the potential scale of biofuel production without creating adverse effects on food supply. We explore the possibility of three land-efficient technologies for producing food (actually animal feed), including leaf protein concentrates, pretreated forages, and double crops to increase the total amount of plant biomass available for biofuels. Using less than 30% of total U.S. cropland, pasture, and range, 400 billion liters of ethanol can be produced annually without decreasing domestic food production or agricultural exports. This approach also reduces U.S. greenhouse gas emissions by 670 Tg CO2-equivalent per year, or over 10% of total U.S. annual emissions, while increasing soil fertility and promoting biodiversity. Thus we can replace a large fraction of U.S. petroleum consumption without indirect land use change.

LanguageEnglish (US)
Pages8385-8389
Number of pages5
JournalEnvironmental Science and Technology
Volume44
Issue number22
DOIs
StatePublished - Nov 15 2010

Profile

land rights
Biofuels
biofuel
Animals
Food supply
animal
Biodiversity
Petroleum
Carbon Monoxide
food production
food supply
Gas emissions
Greenhouse gases
Land use
soil fertility
Crops
land use change
energy
forage
ethanol

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Biofuels done right : Land efficient animal feeds enable large environmental and energy benefits. / Dale, Bruce E.; Bals, Bryan D.; Kim, Seungdo; Eranki, Pragnya.

In: Environmental Science and Technology, Vol. 44, No. 22, 15.11.2010, p. 8385-8389.

Research output: Contribution to journalArticle

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