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Tag Archives: environmental protection agency
EPA Drafting Rules on International Land Use Change
The U.S. EPA is expected to release a proposed rulemaking for implementing the lifecycle analysis requirements for biofuels under the renewable fuels standard. (Check out the EPA’s official blog, even though it contains no posts on this subject.) Estimating the emissions generated through the production of biofuels has been controversial, particularly with respect to how land-use changes affect emissions. E&E TV’s OnPoint recently interviewed Jack Huttner, vice president of Dupont Danisco Cellulosic Ethanol, about the Read More >
What Do You Know, Oil Does Cause Land Use Change
In a recent post, I questioned the apparent assumption in the current debate over greenhouse gas emissions from biofuels that petroleum gasoline production does not have an effect on land use change. It turns out there is a well-developed literature on the direct land use change effects of oil exploration in the Amazon and South America. Chris W. Baynard of the University of North Florida Department of Geology presented a study, “Venezuela’s Heavy Oil Belt: Read More >
Life Cycle Analysis, International Land Use Change and Uncertainty
Bruce Dale, University Distinguished Professor of Chemical Engineering at Michigan State University, shared this presentation that he gave during a webinar hosted by the North Central Bioeconomy Consortium. In it, he highlights the number of factors in Life Cycle Analysis and Indirect Land Use Change (ILUC) models that produce uncertainty – in other words, if the assumptions or data for these factors change, how much do the results change. Dale is primarily examining the “carbon Read More >
Does Oil Cause Indirect Land Use Change?
I’ve been paying a lot of attention recently to new analyses attempting to model carbon emissions from indirect land use change, which is the conversion of land needed to maintain an international balance of supply and demand for agricultural crops, an effect that is heavily determined by crop prices. These new analyses raise a question about the existing assumption that oil has zero effect on land use change. Tim Searchinger, the lead author of one Read More >
Biofuels & Climate Change
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Tags: biofuel, California Air Resources Board, carbon debt, Climate Change, environmental protection agency, ethanol, Greenhouse Gas Emission, greenhouse gas emissions, indirect land use change, lifecycle analysis, Oil prices, rainforest, renewable fuel standard, Searchinger, Thomas Hertel, Tim Searchinger, U.S. EPA, Wallace Tyner
Tags: biofuel, California Air Resources Board, carbon debt, Climate Change, environmental protection agency, ethanol, Greenhouse Gas Emission, greenhouse gas emissions, indirect land use change, lifecycle analysis, Oil prices, rainforest, renewable fuel standard, Searchinger, Thomas Hertel, Tim Searchinger, U.S. EPA, Wallace Tyner
More Models to Measure Land Use Change
As the U.S. EPA and California’s Air Resource Board seek to implement their respective Renewable and Low-Carbon Fuel Standards, economists continue to refine models to measure and predict indirect land use change emissions associated with biofuels. Many of the original critiques of the Searchinger paper in Science that initiated this debate commented on the uncertainty in attributing indirect land use change to biofuels. Prof. Roger Sylvester-Bradley of ADAS UK Ltd., for instance, summarizes many of Read More >
Biofuels & Climate Change
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Tags: California Air Resources Board, Climate Change, environmental protection agency, Greenhouse Gas Emission, greenhouse gas emissions, indirect land use change, Land Use, Land Use Change, life cycle analysis, lifecycle analysis, Low Carbon Fuel Standard, renewable fuel standard, Searchinger, U.S. EPA, Wallace Tyner
Tags: California Air Resources Board, Climate Change, environmental protection agency, Greenhouse Gas Emission, greenhouse gas emissions, indirect land use change, Land Use, Land Use Change, life cycle analysis, lifecycle analysis, Low Carbon Fuel Standard, renewable fuel standard, Searchinger, U.S. EPA, Wallace Tyner
