Grass for gas: new frontiers in growing biofuels In Iowa and Tennessee, researchers and farmers are on the front lines of the biofuel revolution where switchgrass, sourgum and miscanthus are grown specifically as renewable fuel sources Backyard wilderness in Los Angeles Unlike most wilderness areas that are remote and hard to access, the San Gabriel Mountains are within easy reach of the L.A. urban sprawl, forming the centerpiece of an imaginative plan for a 600,000-acre national recreation area Restoring native plants in Utah High school students in Kanab learn the importance of protecting vanishing native plants and tackling invasive species. Harvesting native seeds, sprouting them in a greenhouse and transplanting them in acre-sized test plots, they track the plants' progress with GPS technology