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Experts say forest woody biomass could become a critical component of the conversion to clean energy in the U.S. and can be a sustainable resource, but its extraction concerns conservationists.

University of California-San Francisco researchers have genetically engineered a brewer’s yeast and co-cultured it with a cellulose-eating bacterium. The symbiotic relationship of the two microbes has created a novel process to convert biomass into methyl halides.

Salem, Ore.-based Diesel Brewing is working to implement a unique business model for the gasification of waste biomass into biobutanol and other valuable energy products.

Maine company employs creative business practices and a fleet of chippers to ensure a steady stream of feedstock is supplied to their plants.