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Journal ArticleBiofuels, Land, and Water: A Systems Approach to SustainabilityCategory: - Documnet Type: Journal ArticleThere is a strong societal need to evaluate and understand the sustainability of biofuels, especially because of the significant increases in production mandated by many countries, including the United States. Sustainability will be a strong factor in the regulatory environment and investments in biofuels.... More» Author: Gayathri Gopalakrishnan, M. Cristina Negri, Michael Wang, May Wu, Seth W. Snyder, and Lorraine LaFreniere - submitted on Tue, 01/12/2010 - 22:20. Development of switchgrass (Panicum virgatum) as a bioenergy feedstock in the United StatesCategory: Biomass - Documnet Type: Journal ArticleA 10-year US Department of Energy-sponsored research program designed to evaluate and develop switchgrass (Panicum virgatum), a native perennial warm-season grass, as a dedicated energy crop is reviewed.... More» Author: Samuel B. McLaughlin, and Lynn Adams Kszos - submitted on Tue, 01/12/2010 - 22:06. Environmental and Sustainability Factors Associated With Next-Generation Biofuels in the U.S.: What Do We Really Know?Category: - Documnet Type: Journal ArticleIn this paper, we assess what is known or anticipated about environmental and sustainability factors associated with next-generation biofuels relative to the primary conventional biofuels (i.e., corn grain-based ethanol and soybean-based diesel) in the United States during feedstock production and conversion processes.... More» Author: Pamela R. D. Williams, Daniel Inman, Andy Aden, and Garvin A. Heath - submitted on Tue, 01/12/2010 - 20:52. The Water Footprint of Biofuels: A Drink or Drive Issue?Category: - Documnet Type: Journal ArticleEnsuring inexpensive and clean water is an overriding global challenge noted as one of the Millennium Development Goals of the United Nations.... More» Author: Rosa Dominguez-Faus, Susan E. Powers, Joel G. Burken, Pedro J. Alvarez - submitted on Tue, 01/12/2010 - 20:30. Water Embodied in Bioethanol in the United StatesCategory: - Documnet Type: Journal ArticlePrior studies have estimated that a liter of bioethanol requires 263-784 L of water from corn farm to fuel pump, but these estimates have failed to account for the widely varied regional irrigation practices. By using regional time-series agricultural and ethanol production data in the U.S., this paper estimates the state-level field-to-pump water requirement of bioethanol across the nation.... More» Author: Yi-Wen Chiu, Brian Walseth, and Sang Won Suh - submitted on Tue, 01/12/2010 - 20:23. Forage production of cool season pasture grasses as related to irrigationCategory: Biomass - Documnet Type: Journal ArticleA significant portion of the irrigated acreage in the intermountain western U.S. is comprised of cool season grass pastures. Droughts, coupled with increasing demands for limited water supplies in the region, have decreased the water volumes available for irrigating these pastures and other crops.... More» Author: D. Smeal, M.K. O’Neill and R.N. Arnold - submitted on Wed, 09/30/2009 - 15:40. The impact of growing miscanthus for biomass on farmland bird populationsCategory: Biomass - Documnet Type: Journal ArticleMiscanthus is a newly introduced crop grown primarily to produce biomass for energy production and the area grown in the UK is anticipated to increase. Major differences in crop management from conventional arable crops have led to speculation that miscanthus may also have effects on farmland biodiversity.... More» Author: P.E. Bellamy , P.J. Croxtona, M.S. Hearda, S.A. Hinsleya, L. Hulmesa, S. Hulmesa, P. Nuttalla, R.F. Pywella and P. Rotherya - submitted on Wed, 09/30/2009 - 15:30. Use of U.S. Croplands for Biofuels Increases Greenhouse Gases Through Emissions from Land-Use ChangeCategory: Biomass - Documnet Type: Journal ArticleMost prior studies have found that substituting biofuels for gasoline will reduce greenhouse gases because biofuels sequester carbon through the growth of the feedstock. These analyses have failed to count the carbon emissions that occur as farmers worldwide respond to higher prices and convert forest and grassland to new cropland to replace the grain (or cropland) diverted to biofuels.... More» Author: Timothy Searchinger, Ralph Heimlich, R. A. Houghton, Fengxia Dong, Amani Elobeid, Jacinto Fabiosa, Simla Tokgoz, Dermot Hayes, Tun-Hsiang Yu - submitted on Thu, 09/17/2009 - 19:33. Beneficial Biofuels—The Food, Energy, and Environment TrilemmaCategory: Biomass - Documnet Type: Journal ArticleRecent analyses of the energy and greenhouse-gas performance of alternative biofuels have ignited a controversy that may be best resolved by applying two simple principles.... More» Author: David Tilman, Robert Socolow, Jonathan A. Foley, Jason Hill, Eric Larson, Lee Lynd, Stephen Pacala, John Reilly, Tim Searchinger, Chris Somerville, Robert Williams - submitted on Thu, 09/17/2009 - 19:30. Sustainable Biofuels ReduxCategory: - Documnet Type: Journal ArticleLast May’s passage of the 2008 Farm Bill raises the stakes for biofuel sustainability: A substantial subsidy for the production of cellulosic ethanol starts the United States again down a path with uncertain environmental consequences.... More» Author: G. Philip Robertson et al. - submitted on Thu, 09/17/2009 - 19:27.  |
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