The warmer Arctic has dramatically accelerated the melting of the Greenland ice sheet.
Well, you must think of the land just outside the ice sheet in Greenland, or other arctic country.
The ice sheet did not come further south than the Thames valley.
Far to the south appeared an ice sheet, but it lay too far out of our course.
Two of the species of sequoia escaped destruction in tracts the ice sheet did not overwhelm.
As in any case we should have to cross the ice sheet, a path was sanded.
In the area beneath this ice sheet no trace of human occupation until long after this time occurs.
At one time this ice sheet extended a mile further down and plunged over the abrupt precipice that walls the Avalanche basin.
Was its bed, sea or dry land, or under an ice sheet, during the long ages of the glacial epoch?
This is the most southerly point to which the ice sheet reached.
|ice sheet |
A large sheet of ice and snow that covers an entire region and spreads out under its own weight. Ice sheets have an area of more than 50,000 square km (19,500 square mi). Compare icecap.