What's hidden under the Greenland Is an Ice Age Coming? | Space Time | PBS Digital 1 day ago   09:02

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The Greenland ice sheet is massive, mysterious -- and melting. Using advanced technology, scientists are revealing its secrets for the first time, and what they've found is amazing: hidden under the ice sheet is a vast aquifer that holds a Lake Tahoe-sized volume of water from the summer melt. Does this water stay there, or does it find its way out to the ocean and contribute to global sea level rise? Join glaciologist Kristin Poinar for a trip to this frozen, forgotten land to find out.

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Comments 2377 Comments

anthony toscano
So by the ice melting, it has only given fossil fuel corporations an open door to destroy earth even faster.
I believe in the 2030 idea. Weather patterns destroying life at a rate worse than any plague ever recorded.
Economic collapse around the world, that seems to be come sooner than later as predicted.
Something we will never be able to correct, money will be worthless, Food, Clean water, will become the new currency.
I hope I live long enough to see the reaction hit people square in the face, with the look of dismay, HOW DID THIS HAPPEN.
One answer, GREED
Frank Mayo
The sea level rise is bullshit ...sea level s aren't risingworld wide....look to Russian models they have the most accurate (27 years running now) models for seas level rise and are the only ones that don't lie like all the global warming cabal freaks in the 31 predictive model nations.
DR. ZOIDBURG
vrry good presentation i enjoyed it thankful Kristin
voyageruk2002
I'll tell you exactly what's under there. A massive crater from an asteroid impact 12000 years ago.
Bronco Monk
Castles built in the 12 and 1300's had sea side docks for resupply. These castles are now 1400 and 1700 meters from the ocean. I think there is room.
Julie Out there
Looked for information on the glaciacian of Iceland but couldn't find anything in English. Eventually found an article written by a scientist from the university in Iceland who monitor the ice sheets. Had to download a translation app as it was written in Icelandic. It says that in the past few years there has been no loss in the ice sheet and in 2018 it has gained ice. Iceland is 765 miles from Greenland. Read into that what you like.
Mickeyislowd
Why do scientists talk to the public like they are children in class..? She could of gotten more technical and most people would grasp the concepts quite readily.
David Gaynor
She's a good speaker and gets to the point, on the mark!
John Lammi
"the sea level rise that is coming"; The sea level has been rising for thousands of years; she conveys the impression that this is new, although she does note that there is great uncertainty in their models' predictions.
John Lammi
the predictions about sea level rise from Gore and various science advisors have not been at all accurate (e.g., that lower Manhattan would be covered by the sea by now). Re: modeling, eminent Princeton physicist, Freeman Dyson, knows the Japanese scientist who devised the first such model for climatic change, and they both agree that such models are useful for teasing out an understanding of what we currently see but are not capable of actually predicting the future in a situation like climate
Gunzmith Dragonkind
oh my god.o know what it is....dirt
Zenon Kolacz
Very interesting talk!
Goodtimes
We’re all gonna die - the only thing that can save us now is Al Gore and his robots like this women.
Jackie Eastom
Not the plastic ocean talk,but how about a skimmer ship to suck up the plastic in the ocean and recycle it into usable products?
Bill Petrie
Find a way to turn Seawater in to fuel and you could solve the world energy problem.
MORTIMER SCHNERD
Let me guess. Jimmy Hoffa?!
Russ Browne
Some are saying we are headed for a mini ice age because of the grand solar minimum, record cold temperatures were recorded this winter in north america, warming cannot produce record cold. Nasa has also recorded that the earth's outer atmosphere is cooling rapidly.
nick beam
Since your on this type of subject then don't stop here lay out Antarctica for us bet you can't get within 1000 miles of it before your surrounded !
North Georgia
Crack always gets me started!
Justin McCarthy
Good TED presentation. Could have added the issue of human caused dust and soot reducing albedo and increasing absorption of solar radiation contributing to melting ice. Also, would note that she is comfortable stating that sea level rise would be 8 inches in eighty years but then must caveat it with or 39 inches or more. Yup. Got to get that in there to protect herself. Would have enjoyed a discussion of the Greenland ice sheet coverage during the Medieval Warm Period to juice things up a bit.
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Is an Ice Age Coming? | Space Time | PBS Digital What's hidden under the Greenland 1 day ago   15:28

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Spoiler: no (and climate change has nothing to do with this).

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We’re living in a brief window of time where our planet isn’t frozen underneath a giant layer of glaciers. How much longer will the moderate climate that we’ve come to know as “normal” continue? What causes these dramatic shifts in temperature that thaw our planet and then throw it back into a state of deep freeze? This episode looks at how the changes in our planet’s orbit and rotation impacts our climate.

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