Marcellus Shale contains fairly large quantities of natural gas.  This project examines the feasibility of extracting this methane gas using supercritical carbon dioxide.  If extraction proves to be possible, it would enhance the recovery amount and time of this natural resource which will lower its cost.  The project also examines the possibility of sequestering carbon dioxide in Marcellus Shale for extended periods of time.  If the extraction process is feasible, this would make natural gas much greener as a source of energy.  This work is a preliminary study to determine the amount of carbon dioxide that can be adsorbed onto the shale under super critical conditions.