California regulators preparing on Thursday to adopt landmark rules curbing carbon emissions from transport fuels made an eleventh-hour bid to woo critics who call the measures unfair to corn-based ethanol.
Transport alone accounts for 40 percent of greenhouse gas emissions in California, which ranks as the leading automobile market in the United States.
If adopted by the Air Resources Board as expected, the low-carbon fuel standard would become the first measure in the nation to impose on motor fuels limits on the amount of greenhouse gases, which contribute to global warming.
Similar rules are being considered in 11 other states that are waiting for California to act. President Barack Obama has also called for a nationwide low-carbon fuel standard to help meet his goal of cutting greenhouse gas emissions more than 80 percent by mid-century.
Ethanol industry advocates and scientists are among those who have vehemently opposed ...