This ultimately reduces the methane saturation of the coal bed and increases {TAIL ~ the capacity} of the coal bed for {HEAD ~ hydrogen storage} 
This ultimately reduces the methane saturation of the coal bed and increases { TAIL ~ the capacity } of the coal bed for { HEAD ~ hydrogen storage }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD