Following his formal training in physics, Gibbons spent 15 years at
Oak Ridge National Laboratory. At Oak Ridge, he studied the structure of
atomic nuclei, with emphasis on the role of
neutron capture in the nucleosynthesis of heavy elements in stars. In the late 1960s, at the urging of
Alvin M. Weinberg, he pioneered studies on how to use technology to conserve energy and minimize the
environmental impacts of energy production and consumption. In 1973, Gibbons was appointed the first director of the U.S. Federal Office of Energy Conservation. In 1975 he returned to
Tennessee to direct the
University of Tennessee Energy, Environment and Resources Center. Gibbons was appointed In 1979 to direct the US Congressional
Office of Technology Assessment,. After leaving the White House, Gibbons served as the Karl T. Compton Lecturer at
MIT (1998–1999) and senior fellow at the
National Academy of Engineering (1999–2000) where he assisted NAE's president on a variety of topics including the new NAE program in Earth Systems Engineering. During 1999-2001 he was Senior Advisor to the
U.S. Department of State where he assisted the Secretary in revitalizing science and technology capabilities, including creating the position of Science Advisor to the Secretary. == Scientific affiliations and awards ==