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The US Environmental Protection Agency (EPA) has announced a temporary waiver allowing the sale of a higher-ethanol fuel blend, known as E15, in an effort to alleviate soaring gas prices that have been exacerbated by the ongoing Iran war.E15, which contains a higher percentage of ethanol than standard gasoline, has been prohibited during warm weather months due to concerns over its potential to worsen smog. However, the EPA's decision, supported by the US agriculture secretary, Brooke Rollins, aims to provide relief to consumers at the pump.“President Trump is unleashing American Energy Dominance, and today’s action will directly lower prices at the pump and gives a clear demand signal to our domestic biofuels producers,” Rollins stated.The summer waiver for E15 has become a recurring measure in recent years, with both Republicans and Democrats advocating for its permanent implementation to reduce fuel costs. Currently, E15 is already permitted in several states, including Iowa, Illinois, Minnesota, Nebraska, Missouri, Wisconsin, and most of South Dakota.However, not all experts are convinced that the move will significantly lower gas prices. Kenneth Gillingham, a professor at the Yale School of the Environment, pointed out that E15 is not widely available in all states, and some areas lack the necessary infrastructure or sufficient ethanol supply to support increased use.Gillingham also highlighted potential risks associated with E15, particularly for older vehicles, boats, and all-terrain vehicles, due to its higher corrosive ethanol content. Additionally, increased corn usage for ethanol production could lead to higher costs for animal feed and, subsequently, grocery prices.“I think it’s difficult to see when the ledger’s settled how this is a benefit for US consumers,” said Jason Hill, a professor at the University of Minnesota.The decision has also drawn criticism over its potential environmental impacts, with concerns about increased ozone issues, respiratory problems, and even premature deaths.While the oil industry has generally opposed the expansion of E15, citing costly biofuel blending and potential price increases, the American Petroleum Institute has expressed support for the temporary waiver, emphasizing its role in ensuring affordable and reliable energy for American consumers.