A recent study commissioned by Clean Fuels Alliance America and Farmers Fueling the Future found that California’s indirect land use change assumptions for U.S. soy-based biodiesel and renewable diesel are outdated and lacking modern agricultural practices and current science. The analysis, conducted by Life Cycle Associates, highlights substantially lower ILUC emissions for soy-based fuels than those currently used by the California Air Resources Board. Considerations include advances in economic modeling, land-use data, yield responsiveness, trade patterns, and carbon stock measurements. CARB last updated its soybean ILUC value in 2018, using modeling tools and data that predate many of today’s improvements in agricultural productivity and global market dynamics. “This study confirms that today’s farmers are meeting growing clean fuel demand through higher yields and responsible practices, and not land expansion,” said Dave Walton, Executive Board Member for Clean Fuels and the American Soybean Association. “CARB must modernize its approach to land-use changes.”
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