207-786-6062 | firstname.lastname@example.orgProfessor of Earth and Climate Sciences Carnegie Science Hall, Room 214 Classes | Theses | Current Research | CV | Selected Publications | Google Scholar Profile
Bev Johnson’s research interests involve using geochemical analyses to explore environmental change over a range of temporal and spatial scales. She specializes in organic and stable isotope geochemistry, and the use of stable carbon, nitrogen and sulfur isotopes in modern and ancient organic matter. Bev and students investigate problems such as (1) the history of sea level rise and coastal storms (otherwise known as paleotempestology) as recorded in salt marsh sediments, (2) the size of carbon stocks stored in coastal sediments, (3) changes in diets of ancient fish and humans along the coast of Maine, through the last 4,000 years, (4) nutrient transfer from anadromous fish into coastal fresh water lakes, (5) methane emissions in altered and recently restored salt marshes, and (6) the use of archival datasets to reconstruct long-term changes in water quality on the Androscoggin River. Bev is a member of the international scientific working group on coastal blue carbon, and studies the potential of carbon storage and sequestration in salt marshes, seagrass beds, (and mangroves ) as a means for mitigating climate change.
Bev teaches first year seminars titled Coastal Hazards (FYS 476) or Burning Our Planet (FYS 284), an introductory course on Global Change (EACS 109), intermediate courses in Environmental Geochemistry (EACS 240) and Hydrogeology (ESEA 226), advanced courses in Biogeochemistry and Paleoclimatology (EACS 367) and Stable Isotopes and Past Environments (EACS 340). Occasionally, Coastal Hazards or Hydrogeology are taught as short term units. Bev often integrates student research projects into her classes. Students investigate various aspects of the Androscoggin River at all levels of the curriculum, for example.