Evan DeLucia (image) University of Illinois at Urbana-Champaign Caption Illinois plant biology professor Evan DeLucia and his colleagues analyzed how land use changes associated with biofuels production affected soil carbon. Credit Photo by Don Hamerman Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: Photo by Don Hamerman Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.