In the fall, switchgrass ripens to a golden brown. It is normally harvested in early November when the plant has gone dormant.

Next Generation Fuels Stuck In Neutral

The federal government’s complex set of rules meant to spur a renewable fuels industry has fallen behind one of its main goals: cut greenhouse emissions from gasoline. Nearly a decade after the rules were drafted, low-carbon fuels have yet to arrive. The Environmental Protection Agency says it will propose tweaks to the nation’s ethanol policy by June 1, and the changes will mark a crucial point for the next generation of biofuels, which have so far failed to flourish.