(Randolph County, IN)--A company called One Carbon Partnership has received federal approval to inject more than 13 million metric tons of carbon dioxide deep into the ground in Randolph County.  The carbon dioxide will be injected and stored underground at the Cardinal Ethanol site just west of Union City.  The process is called carbon sequestration.  The storage area is more than half a mile underground and is protected by a 500-foot-thick layer of rock.  One Carbon Partnership is required to monitor the site to ensure the carbon dioxide does not threaten drinking water.