Are you kidding me ?  This story is a joke.  After the last ice age all ice has been in retreat . It's the natural process.  And it's a good process as well .  Millions across our planet live in area's that were once covered in ice . If the ice didn't melt we humans would have few places to live, grow food , and live normal lives.  Exit glacier will be gone from view in a few years . Big deal !  When I was a kid you could see Portage glacier and the bay was full of ice.  Ice melts---it's the natural process.  In 50 years or less the visitor center will be gone because there will be, as there is now , nothing to see there.  A few weeks back I  flew across Greenland. The ice was so high only tips of mountains could be seen . That ice will be gone one day too . Today's measurements are meaningless .  As Dennis Miller says- over one hundred years ago we didn't have the science to fly . So we are supposed to trust their baseline measurements ?  We are in the melting period.  Accept it .