SORU: aşağıdaki parçaya göre cevaplayınız
It is clearly stated in the passage that Greenland's glaciers ----.
Greenland faces a great risk of losing substantial
amounts of its glaciers, which could result in more sea
level rise. One of these immense glaciers that drain the
vast Greenland ice sheet has recently begun to retreat.
It could eventually contribute half a metre to sea level
rise. Some of Greenland's glaciers rest in deep fjords,
and as the water warms, their leading edges melt. The
ice within them is also moving towards the sea faster ─
so more is being dumped in the sea. The process began
with the vast Jakobshavn glacier in the west, followed by
the Petermann and Humboldt in the north. Recently, it
has been announced that the Zachariæ Isstrøm glacier
in the north-east began to retreat in 2012 and its flow
towards the sea has also accelerated. "Now it's
unstable and it's going to retreat even more," says
Jeremie Mouginot of the University of California. The
next glacier to the north, Nioghalvfjerdsfjorden, could
follow suit. The floating ice shelf that protects it is
thinning and could soon be lost. Most of the ice shelves
in the seas around Greenland have already
disappeared. "The melt will add millimetres to sea levels
over the coming decades," says Mouginot