University of Michigan’s Energy Institute research professor John DeCicco, Ph.D., believes that rising carbon dioxide emissions are causing global warming and, therefore, humans must find a way to reduce its levels in the atmosphere—but ethanol is the wrong solution. According to his just-released study, political support for biofuels, particularly ethanol, has exacerbated the problem instead of being the cure it was advertised to be.
DeCicco and his co-authors assert: “Contrary to popular belief, the heat-trapping carbon dioxide gas emitted when biofuels are burned is not fully balanced by the CO2 uptake that occurs as the plants grow.” The presumption that biofuels emit significantly fewer greenhouse gases (GHG) than gasoline does is, according to DeCicco: “misguided.”
His research, three years in the making, including extensive peer-review, has upended the conventional wisdom and angered the alternative fuel lobbyists. The headline-grabbing claim is that biofuels are worse for the climate than gasoline.
Past bipartisan support for ethanol was based on two, now false, assumptions.
First, based on fears of waning oil supplies, alternative fuels were promoted to increase energy security. DeCicco points out: “Every U.S. president since Ronald Reagan has backed programs to develop alternative transportation fuels.” Now, in the midst of a global oil glut, we know that hydraulic fracturing has been the biggest factor in America’s new era of energy abundance—not biofuels. Additionally, ethanol has been championed for its perceived reduction in GHG. Using a new approach, DeCicco and his researchers, conclude: “rising U.S. biofuel use has been associated with a net increase rather than a net decrease in CO2 emissions.”
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