Environmental implications of higher ethanol production and use in the U.S.: A literature review. Part II – Biodiversity, land use change, GHG emissions, and sustainability
S. Kent Hoekman and
Renewable and Sustainable Energy Reviews, 2018, vol. 81, issue P2, 3159-3177
To address issues of energy security and greenhouse gas (GHG) mitigation, substantial amounts of corn-derived ethanol are being used in U.S. gasoline. Currently, ethanol comprises 10% of the U.S. gasoline pool (E10), but there is interest in increasing this – possibly doubling the amount currently used. Production of corn ethanol raises several concerns with respect to environmental and ecological impacts. This paper reviews the available literature regarding impacts on biodiversity, land use change (LUC), greenhouse gas (GHG) emissions, and overall sustainability. A companion paper addresses impacts on water, soil, and air quality. We emphasize recent information appearing since comprehensive reports on these topics were issued by the U.S. EPA and NRC/NAS in 2011.
Keywords: Ethanol; E20; Biodiversity; Land use change; GHG emissions; Sustainability (search for similar items in EconPapers)
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