My research investigates the fate of methane released from ancient carbon stored in Arctic Ocean shelf sediments. We investigate the strength of source and sink processes that determine how much methane is emitted from shelf hydrates and permafrost to the atmosphere. Natural abundance radiocarbon and stable isotope measurements of methane are the primary tools we use to assess the role of ancient carbon sources in acting as a positive feedback to ongoing climate change.
Latest scientific papers
Efficient collection and preparation of methane from low concentration waters for natural abundance radiocarbon analysis
Dissolved methane and carbon dioxide fluxes in Subarctic and Arctic regions: Assessing measurement techniques and spatial gradients