Leaves, Twigs, and Bark: Cheap Biofuel Alternatives?

It seems like new reports are practically coming out daily about the next great gasoline alternative— furfural, algae, and switchgrass, just to name a few. Now 3 more contenders have entered the ring: leaves, twigs, and bark.
Australia’s Commonwealth Science and Research Organization (CSIRO) reports that lignocellulose, a component of plants and wood, could potentially be used as a cheap fuel—as inexpensive as $40-60 a barrel.
Even better, lignocellulose biofuels are compatible with current facilities. All they need for conversion is an extra unit in front of any existing sugar biofuel facility.

The changing colors of the autumn leaves are beautiful - until they’re no longer on the trees and covering your yard. Here are a couple of ways to be green with the fall colors.