Not exact matches
Considering that the Greenland and Antarctic
ice sheets span more than 1.7 million and 14 million square kilometers, respectively, while containing 90 % of the world's freshwater
ice supply, melting of
ice shelves could be catastrophic for low -
lying coastal areas.
Previous work has estimated that more than a trillion tonnes of methane
lie under the
shelf, trapped inside lattices of
ice known as hydrates, at depths as shallow as 20 metres.
The station
lies at 71 ° 57» S and 23 ° 20» E, 220 km due South from the edge of the
ice shelf.
In Antarctica, even though as a whole it's slightly gaining in sea
ice cover, most of these gains are over unproductive, deep -
lying seabeds, whereas the newly
ice - free areas are mostly located over highly productive continental
shelves in the West Antarctic.
, most of these gains are over unproductive, deep -
lying seabeds, whereas the newly
ice - free areas are mostly located over highly productive continental
shelves in the West Antarctic.
The extent to which this will happen in the future depends, crucially, on how warm the sea - water
lying under the
ice -
shelves is.
The video ends with a very troubling fact: In the 2 years since «A Beautiful
Lie» was released, nearly a fourth of the arctic
ice shelf has disappeared.