Digging into the differences in carbon accounting for biofuels

By mmillikin The benefit to the climate of using biofuels as a substitute for fossil fuels has been sharply contested for years; much of the disagreement is based on the assumptions underlying the carbon accounting in the lifecycle analysis. The argument essentially boils down to whether or not biofuels are inherently carbon neutral because the CO2 released when they are burned is derived from CO2 uptake during feedstock growth.

A paper and subsequent formal comments and responses in the journal Climatic Change highlights the conceptual differences and the impact on policy. Professor John DeCicco at the University of Michigan Energy Institute has

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