Washington ? Asked to choose between lower gasoline prices and reduced greenhouse gas emissions from gasoline, 66 percent of Americans in a new online survey chose lower gas prices and the rest said that reducing the emissions that cause climate change was more important.

The survey also found that 56 percent of Americans think that the federal government should stop subsidizing ethanol production because they’re afraid that it boosts food prices, while the rest said that the subsidies should continue. When they were asked to choose between government subsidies for food crops or for ethanol, 82 percent chose food and the rest chose ethanol.

However, when the respondents were asked whether energy independence or lower food prices were more important, 55 percent said energy independence and the remainder said lower food prices.

About 90 percent of U.S. ethanol is made from corn, according to the Department of Energy. Government and private industries have been researching ways to use nonfood plants instead by breaking down cellulose, the structural part of plants’ leaves, stalks and husks. The potential advantages of cellulosic ethanol are lower greenhouse gas emissions and less competition for agricultural land.

The nonpartisan polling group Ipsos conducted the online survey May 19-25 from a national sample of 1,266 people ages 18 and older. The sample was weighted to reflect the composition of the national population. It wasn’t a scientific random sample, however, but the equivalent of a large focus group.

The survey also found that 57 percent of those surveyed said that demand rather than government subsidies should drive ethanol production, while 6 percent disagreed and 37 percent said they neither agreed nor disagreed.