Grand Island Independent: Sen. Mike Johanns, R-Neb., announced this week that he is supporting the Environmental Protection Agency (EPA) taking the first step to raise the limit on the amount of ethanol blended with gasoline. He said the EPA has opened a public comment period on the possibility of raising the limit from its current cap of 10 percent to as much as 15 percent. “I have long supported increasing the ethanol blend in gasoline, provided that it remains safe for engines,’ Johanns said. “This …