The Peter Raymond Lab research focuses on the biogeochemistry of natural systems. In particular, we are interested in the carbon and nitrogen cycles within aquatic systems.

Current research topics include:

• The landscape controls on the watershed export of carbon.
• Biogeochemical transformations in estuaries.
• Air-water CO₂ exchange.
• Nitrogen cycling in temperate watersheds.
• Determining the age and composition of carbon being transported from land to the ocean.

Our research often utilizes the watershed approach and natural isotopes, to determine major sources, sinks, and ages of various carbon and nitrogen pools, in the natural environment.