Antarctica: Secrets Beneath the Ice Documentary by NOVA
Geschreven op 21-10-2015 - Erik van Erne. Geplaatst in Klimaat
Almost three miles of ice buries most of Antarctica, cloaking a continent half again as large as the United States.
But when an Antarctic ice shelf the size of Manhattan collapsed in less than a month in 2002, it shocked scientists and raised the alarming possibility that Antarctica may be headed for a meltdown.
Even a 10 percent loss of Antarctica’s ice would cause catastrophic flooding of coastal cities unlike any seen before in human history. What are the chances of a widespread melt?
Secrets Beneath the Ice explores whether Antarctica’s climate past can offer clues to what may happen. NOVA follows a state-of-the-art expedition that is drilling three-quarters of a mile into the Antarctic seafloor. The drill is recovering rock cores that reveal intimate details of climate and fauna from a time in the distant past when the Earth was just a few degrees warmer than it is today. As researchers grapple with the harshest conditions on the planet, they discover astonishing new clues about Antarctica’s past—clues that carry ominous implications for coastal cities around the globe.
See also: Earth From Space by NOVA - Extreme Ice Documentary by NOVA Online: In Extremis - Antarctica: Secrets Beneath the Ice Documentary by NOVA - Power Surge Documentary by NOVA - Search For The Super Battery Documentary by NOVA - Antartica: Wilkins IceShelf – Mertz Glacier – RonneFilchner IceShelf – PIG IceShelf - 100 Places To Remember: Ross Ice Shelf, Antarctica - The Mertz Glacier Tongue is Afgebroken - What Scientists Are Seeing Over Antarctica - Chasing Ice by James Balog: The Story of the Earth’s Changing Climate - Special on Climate Change Official Trailer by NOVA - Special on Climate Change Official Trailer by NOVA
Erik van Erne zegt:
31 december 2017 om 16:27 | Permalink
Living on Ice: Antarctica 360 VR Video by Discovery TRVLR
Hike with Sam Beaugey, a polar explorer and world-renowned mountaineer from the French Alps, as he returns for his 8th year to Antarctica. Sam recounts his death defying experiences including summiting some of the most dangerous icy climbs in white out conditions. Watch as he navigates the harsh terrain of this legendary continent in search of ice caves. Experience stunning landscapes from Antarctica in virtual reality like never before.
Erik van Erne zegt:
27 januari 2021 om 15:09 | Permalink
Lakes Beneath Antarctic Ice: Deep Dark and Mysterious
In 2006, Helen Amanda Fricker was sitting at her desk studying new satellite data when she made a starting discovery – a set of active lakes that exist underneath the ice in Antarctica. Join Helen, a 25-year veteran of Antarctic ice sheet research, and learn about the discovery, exploration and drilling of these mysterious phenomena at the southern reaches of our planet. Recorded on 01/14/2019.
Erik van Erne zegt:
30 november 2021 om 14:01 | Permalink
Happy Antarctica Day!
December 1 is Antarctica Day, which celebrates the anniversary of the signing of the Antarctic Treaty in 1959 and the setting aside of nearly 10% of the Earth “forever to be used exclusively for peaceful purposes … in the interests of all mankind.”
The Treaty recognizes Antarctica as a preserve for peace and scientific study and went into effect with 12 signatories. Today, more than 50 nations recognize the Treaty. It is the foundation upon which decades of scientific achievements and advancements rest.
Among other provisions, the Treaty froze territorial claims to the continent, banned nuclear weapons and waste on the continent, and preserved the entire region south of 60 degrees south latitude for peaceful purposes. The banning of activities of a military nature makes it effectively the first nuclear-arms control agreement in history.