Researchers Find More Pollution from Sugarcane Ethanol
University researchers from California, Iowa and Chile have found that sugarcane ethanol production creates up to seven times more air pollutants than previously estimated, according to news from the University of Iowa.
The research team used agricultural survey data from Brazil to calculate emissions of air pollutants and greenhouse gases from the entire production, distribution, and lifecycle of sugarcane ethanol from 2000 to 2008.
The estimated pollutants were 1.5 to 7.3 times higher than those from satellite-based methods, according to lead author Elliott Campbell of the University of California, Merced.
Greg Carmichael, Karl Kammermeyer Professor of Chemical and Biochemical Engineering in the UI College of Engineering and co-director of the Center for Global and Regional Environmental Research (CGRER), and UI assistant professor Scott Spak note that the findings reflect continued practices and trends that are a part of the production of sugarcane ethanol. These include the practice of burning sugarcane fields before harvest, as well as the fact that sugarcane production in Brazil continues to grow.
“We found that the vast majority of emissions come from burning the sugarcane fields prior to harvesting, a practice the Brazilian government has been moving to end,” says Spak. “However, the sugarcane industry has been expanding rapidly and moving into more remote areas, which makes it much more difficult to enforce new regulations over this growing source of air pollution and greenhouse gases.
“As people try to determine how to integrate biofuels into the global economy, Brazilian sugarcane ethanol has often been considered a more environmentally friendly fuel source than U.S. corn ethanol. In fact, the U.S. Environmental Protection Agency considers sugarcane ethanol an ‘advanced biofuel’ with fewer greenhouse gas emissions than conventional biofuels like corn ethanol. These new findings help us refine those estimates and move closer to making more informed comparisons between different fuel sources, and ultimately make better decisions about how to grow and use biofuels,” Spak says.
The study, titled “Increased estimates of air-pollution emissions from Brazilian sugarcane ethanol,” is featured in the Nature Highlights section and published in the Dec. 11 Advance Online Publication of the journal Nature Climate Change.



Representatives of the U.S. biodiesel industry are urging Congress to pass a seamless extension of the biodiesel tax incentive. The $1-per-gallon biodiesel tax credit is slated to expire on Dec. 31. Bipartisan legislation has been introduced in the U.S. House and Senate to extend it for three years. Proponents of the bill 




The
There’s a hot new craze called the “Ethanol Shuffle” that’s sweeping seaports from Sao Paulo to Los Angeles. No, it’s not a new dance, this shuffle is all about the “confounded realignment of the global ethanol trade.”
ZimmComm New Media is proud to announce the very first (that we know of) Ag Events Calendar.
The 
In
The groups, which includ
The letter from the organizations noted that “preventing the EPA from implementing the use of E15 for cars, pickups and SUVs made in model year 2001 and newer, further contributes to our nation’s reliance on foreign oil. Extensive testing has been done on E15 and it has been found to be a safe and effective fuel for use in the vehicles approved in the waiver. There has been no evidence to the contrary that would indicate problems in any vehicle regardless of vintage.”

