Johnson has served as vice president of The STEM Future Foundation, a charitable and educational nonprofit corporation dedicated to providing underserved children in under-resourced urban and rural communities access to leading-edge technology resources and high-quality STEM education. Johnson has served on the NSF 's Advisory Committee on Environmental Research and Education, the American Geophysical Union Committee on Education and Human Resources as well as their Subcommittee on Diversity, Association for the Sciences of Limnology and Oceanography Education Committee, International Safe Water Conference Steering Committee, Digital Library for Earth System Education Annual Planning Committee, Savannah River Environmental Sciences Field Station Advisory Board, University of Maine 's ADVANCE Rising Tide Center Advisory Board, COSEE: Ocean Systems Advisory Board, Maine Physical Sciences Partnership Advisory Board, MentorNet Geosciences Advisory Board and the Howard University Science, Engineering, and Mathematics Program External Advisory Board. Her recent service activities include serving on the steering committee for the American Academy of Microbiology 's "Training the Microbiologist of the Future Colloquium", being on the executive committee of "CHANGES - the Coalition of Hispanic, African and Native Americans for the Next Generation of Engineers and Scientists", and participating in the White House Workshop on STEM Minority Inclusion, as well as the White House Forum on Minorities in Energy. She is the Chief of Research and Science Practice for Black Girls Dive Foundation, an organization dedicated to inspiring and empowering young girls, historically underrepresented in STEM, to pursue careers in the aquatic sciences.