THE STUDIES “Land Clearing and the Carbon Biofuel Debt” by Joseph Fargione et al., and “Use of U.S. Croplands for Biofuels Increases Greenhouse Gases Through Emissions From Land Use Change” by Timothy Searchinger et al., both published in the February 7, 2008, issue of Science.
THE QUESTION Will switching from fossil fuels to biofuels really reduce greenhouse gases? We take a close look at two big, controversial studies that examine carbon emissions from the ecosystems torn down to produce biofuels.
