Michael Casso is a physical scientist at US Geological Survey (USGS) in Woods Hole, Massachusetts and works primarily with the Geochemistry Laboratory that supports the USGS Gas Hydrates Project. He received his BA in geology from Hamilton College and has worked with the USGS for more than two decades on geochemical environmental monitoring and sediment transport projects. Over the past few years, Michael’s specialty has been measuring methane and carbon dioxide concentrations and the stable carbon isotopes of methane using cavity ring-down spectroscopy (CRDS) coupled with USGS-designed peripheral instruments. In collaboration with Dr. John Pohlman (USGS), Michael has made such measurements in the Beaufort Sea and offshore Svalbard, on the U.S. Atlantic margin, and in the Baltic and North Seas. On “Observing Seafloor Methane Seeps at the Edge of Hydrate Stability”, Michael will conduct analyses on gas samples recovered from CTDs and other devices.