The Biden administration says it will suspend a federal rule that bars higher levels of ethanol in gasoline during the summer. The move, which President Joe Biden was set to announce during a Tuesday visit to Iowa, is intended to tamp down prices at the pump that have spiked during Russia’s war with Ukraine. Iowa is a key producer of the corn-based fuel additive.
A look at how that the decision to authorize year-round use of so-called E15 will impact gas supplies, prices and the environment.
