The Pine Island Glacier's ice shelf in Antarctica acts like a cork in a bottle preventing melting ice mass from flowing into the ocean.
Human-caused climate change is now making glaciers lose snow and ice even more rapidly, scientists say.
And if climate change is not sharply curbed, the region could lose two-thirds of its glaciers by 2100, scientists say.
The village of Innaarsuit fears a devastating tsunami if the mountain of ice plunges into the sea.
A draft of a government report confirms the human impact on climate change -- and seems to contradict virtually everything that President Donald Trump has said about the issue.
A NASA photo gallery shows Earth "in a state of flux."