[5] Her areas of research include environmental aquatic radio geochemistry, 2) professional development of students and early-career scientists, and 3) STEM diversity-focused initiatives.

Her radio geochemistry research activities utilize various biogeochemical indicators to interpret past events impacting marine, estuarine, and freshwater environments.

Johnson cherishes the childhood memory and has sought to share her interest in the oceans with children, teachers, community leaders, college students, and federal government officials.

Johnson's areas of research specialization include aquatic radio geochemistry, professional development of students, and science and engineering diversity-focused initiatives.

Her aquatic radio geochemistry research activities focus on the utilization of various biogeochemical indicators to interpret past events that have impacted the marine, estuarine, and freshwater environments in the Arctic, as well as in coastal regions of Georgia, Florida, and Puerto Rico.

This organization inspires young girls and women to explore aquatic-based recreation activities and career opportunities, and the CEO and superintendent of Cirrus Academy Charter School employs an integrated, hands-on curriculum based on STEAM principles for kindergarten through 12th grade.

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.

In January 2010 she received a Presidential Award for Excellence in Science, Mathematics and Engineering Mentoring (PAESMEM) at the White House in recognition of her professional development and diversity-related activities.