Dave is a "Sustainabilist", a Forester and Forest Ecologist by training and practice; he retired from the U.S. Forest Service in 2014 after 38 years. As a sustainabilist, his passion is to bring together the social, environmental and economic elements needed to create a sustainable society. He got a B.S. in Forest Science at Humboldt State. He had various positions working for National Forests in Oregon and Montana accomplishing reforestation, forest improvement, writing silvicultural prescriptions and timber sale planning and implementation. He also had experiences with Wild and Scenic River assessments, Off-Highway-Vehicle management for multiple states and invasive species management. In mid-career he got a M.S. degree at the University of Montana with a thesis on the definition of Old Growth Forests in the northern Rocky Mountains. The second half of his career was in the State and Private Forestry branch of the Forest Service. He managed the Forest Health Monitoring Program for a 5 state area. He developed and managed the Fuels for Schools Initiative starting in 2001, which used waste trees and parts of trees to produce wood energy; initially at schools and then at a wide variety of facilities including hospitals, colleges, ski resorts, prisons, etc. He finished his career in the Forest Service national office working with the office of the Secretary of Agriculture and multiple USDA agencies, DOE, EPA and nongovernmental partner organizations and the private sector managing the Wood to Energy program (based on the Fuels for Schools model) and initiating the Wood Innovations effort. Wood Innovations includes efforts to expand the use of mass timber products in commercial mid and high-rise buildings. The mass timber products store carbon, while also reducing the fossil energy and carbon needed to build these structures. In retirement he is continuing to pursue his passion of creating a more sustainable society.