Ronal Larson PhD is a retired professor from the Georgia Institute of Technology (Georgia Tech). In 1977, after being selected to be in the first class of American Association for the Advancement of Science (AAAS) Congressional Fellows, he became a Branch Chief and then the first Principal Scientist at today’s National Renewable Energy Laboratory in Golden, Colorado. Dr. Larson was chair of the American Solar Energy Society (ASES) and principal organizer of ASES’s daughter group - the Colorado Renewable Energy Society. He became interested in biochar in the early 1980’s after leading a USAID program in Sudan - a country greatly harmed by excessive use of charcoal - then that country’s main energy resource. After retiring, Dr. Larson became the first coordinator of today’s most active biochar internet list now named “biochar.io” - owned and managed by USBI Executive Director Tom Miles. He attended the first International Biochar Initiative meeting in Australia (2007) and the first USBI conference in Boulder, Colorado (2009). Currently, his focus is on char-making cookstoves and monitoring biochar in the CDR (Carbon Dioxide Removal) world.