David Blume is an American permaculture teacher and entrepreneur. He has been an especially prolific public speaker, and is a vocal advocate for production of ethanol fuel, especially at local, small and medium scales.
Blume taught his first ecology class in 1970. He majored in Ecological Biology and Biosystematics at San Francisco State University, and worked on experimental projects for NASA.
He has consulted for a wide array of clients, including governments, farmers, and companies interested in turning waste into valuable and profitable products.