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We wrote in the beginning of September about a professor at Michigan State University, Kurt Thelen, who was working on a project that grows crops on old industrial waste sites (known as brownfields) and then using those crops to make biofuels. The benefits including the plants sucking up some of the toxins in the soil, using "waste" land and creating more biomass for fuel. In an update from DaimlerChrysler, one of Thelen's partner on the site, the crops - sunflowers, corn, soybeans and more - ha

Maybe finding those extra 10 million acres to grow America's biofuel crops won't be all that difficult. Not if the results of Michigan State University (MSU) professor Kurt Thelen's research come out right. Thelen is looking at ways to grow corn (for ethanol), soybean, sunflower and canola (for biodiesel) on brownfields, polluted former industrial sites. The possible ecological benefits are twofold, Thelen said. First, the crops are likely to be healthy enough to use as fuel and replace some fos