You might have noticed that some gas stations occasionally offer specials on unleaded 88 octane gas—also known as E15—which contains 15 percent ethanol. Ethanol is an alcohol that’s derived from corn.

Add Yahoo as a preferred source to see more of our stories on Google. National security adviser Mike Waltz and Defense Secretary Pete Hegseth confer at an event at the White House on Feb. 24. (Ludovic ...