Hydrogen Cars (image) American Chemical Society Caption Percival Zhang, a scientist at Virginia Tech, is developing a new process for converting plant sugars into hydrogen that could be used to cheaply and efficiently power vehicles equipped with hydrogen fuel cells without producing any pollutants. Credit Courtesy of Virginia Tech. Usage Restrictions None 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.