Sentences with phrase «ice sheet collapse from»

When one couples the plausibility of underground heat causing instability in one region with the old newspaper articles about fears of ice sheet collapse from 100 years ago, at a minimum a reasonable person should wonder what has really been going on for many centuries.

Not exact matches

«Ice - cliff collapse has been debated as a theoretical process that might cause West Antarctic Ice Sheet retreat to accelerate in the future,» said co-author Dr Robert Larter, from the British Antarctic Survey.

The ice sheet is protected, to some degree, from rapid collapse by favourable seafloor geometry.

«It was the biggest collapse of its kind up to that point, and it served to demonstrate how ice shelves regulate the movement of ice from the interior of the ice sheet to the ocean.»

For example, it says a sudden methane release from the ocean, or a slowdown of the Gulf Stream, are «very unlikely» and that a collapse of the West Antarctic or Greenland ice sheets during this century is «exceptionally unlikely.»

We reassess the potential contribution to eustatic and regional sea level from a rapid collapse of the ice sheet and find that previous assessments have substantially overestimated its likely primary contribution.

BANGLADESH is one of the countries at most risk from climate change, as it is low - lying and could be swamped by rising seas — particularly if they rise by several metres (see «Ice sheets on course for collapse «-RRB-.

One 2004 NASA - led study found that most of the glaciers they were studying «flow into floating ice shelves over bedrock up to hundreds of meters deeper than previous estimates, providing exit routes for ice from further inland if ice - sheet collapse is under way.»

The rate of release from the tundra alone is predicted to reach 1.5 billion tons of carbon per annum before 2030, contributing to accelerated climate change, perhaps resulting in sustained decadal doubling of ice loss causing collapse of the Greenland Ice Sheet (Hansen et al, 201ice loss causing collapse of the Greenland Ice Sheet (Hansen et al, 201Ice Sheet (Hansen et al, 2011).

Given that the West Antarctic Ice Sheet has a total sea level equivalent of 3.3 m1, with 1.5 m from Pine Island Glacier alone4, marine ice sheet collapse could be a significant challenge for future generations, with major changes in rates of sea level rise being possible within just the next couple of hundred yeaIce Sheet has a total sea level equivalent of 3.3 m1, with 1.5 m from Pine Island Glacier alone4, marine ice sheet collapse could be a significant challenge for future generations, with major changes in rates of sea level rise being possible within just the next couple of hundred ySheet has a total sea level equivalent of 3.3 m1, with 1.5 m from Pine Island Glacier alone4, marine ice sheet collapse could be a significant challenge for future generations, with major changes in rates of sea level rise being possible within just the next couple of hundred yeaice sheet collapse could be a significant challenge for future generations, with major changes in rates of sea level rise being possible within just the next couple of hundred ysheet collapse could be a significant challenge for future generations, with major changes in rates of sea level rise being possible within just the next couple of hundred years.

However, in periods in the past, say around 8,200 years ago, or during the last ice age, there is lots of evidence that this circulation was greatly reduced, possibly as a function of surface freshwater forcing from large lake collapses or from the ice sheets.

John Mercer, in 1968 and 1970, called attention to the fact that the West Antarctic Ice Sheet (WAIS) was grounded mostly below sea level, calling it a «marine ice sheet» that was therefore inherently unstable, and proposed that the higher sea level resulted from its LIM collapse 125,000 years aIce Sheet (WAIS) was grounded mostly below sea level, calling it a «marine ice sheet» that was therefore inherently unstable, and proposed that the higher sea level resulted from its LIM collapse 125,000 yearsSheet (WAIS) was grounded mostly below sea level, calling it a «marine ice sheet» that was therefore inherently unstable, and proposed that the higher sea level resulted from its LIM collapse 125,000 years aice sheet» that was therefore inherently unstable, and proposed that the higher sea level resulted from its LIM collapse 125,000 yearssheet» that was therefore inherently unstable, and proposed that the higher sea level resulted from its LIM collapse 125,000 years ago.

(1) One is the ice sheet and glacier mechanical collapse, which doesn't require a whole lot more warming, but will happen with some set minimum amount of warming over some time period; and (2) the other is global warming that keeps increasing beyond the level needed to cause # 1, which among other things will perhaps lead to positive carbon feedbacks (e.g., from melting permafrost and hydrates).

Air pressure changes, allergies increase, Alps melting, anxiety, aggressive polar bears, algal blooms, Asthma, avalanches, billions of deaths, blackbirds stop singing, blizzards, blue mussels return, boredom, budget increases, building season extension, bushfires, business opportunities, business risks, butterflies move north, cannibalistic polar bears, cardiac arrest, Cholera, civil unrest, cloud increase, cloud stripping, methane emissions from plants, cold spells (Australia), computer models, conferences, coral bleaching, coral reefs grow, coral reefs shrink, cold spells, crumbling roads, buildings and sewage systems, damages equivalent to $ 200 billion, Dengue hemorrhagic fever, dermatitis, desert advance, desert life threatened, desert retreat, destruction of the environment, diarrhoea, disappearance of coastal cities, disaster for wine industry (US), Dolomites collapse, drought, drowning people, drowning polar bears, ducks and geese decline, dust bowl in the corn belt, early spring, earlier pollen season, earthquakes, Earth light dimming, Earth slowing down, Earth spinning out of control, Earth wobbling, El Nià ± o intensification, erosion, emerging infections, encephalitis,, Everest shrinking, evolution accelerating, expansion of university climate groups, extinctions (ladybirds, pandas, pikas, polar bears, gorillas, whales, frogs, toads, turtles, orang - utan, elephants, tigers, plants, salmon, trout, wild flowers, woodlice, penguins, a million species, half of all animal and plant species), experts muzzled, extreme changes to California, famine, farmers go under, figurehead sacked, fish catches drop, fish catches rise, fish stocks decline, five million illnesses, floods, Florida economic decline, food poisoning, footpath erosion, forest decline, forest expansion, frosts, fungi invasion, Garden of Eden wilts, glacial retreat, glacial growth, global cooling, glowing clouds, Gore omnipresence, Great Lakes drop, greening of the North, Gulf Stream failure, Hantavirus pulmonary syndrome, harvest increase, harvest shrinkage, hay fever epidemic, heat waves, hibernation ends too soon, hibernation ends too late, human fertility reduced, human health improvement, hurricanes, hydropower problems, hyperthermia deaths, ice sheet growth, ice sheet shrinkage, inclement weather, Inuit displacement, insurance premium rises, invasion of midges, islands sinking, itchier poison ivy, jellyfish explosion, Kew Gardens taxed, krill decline, landslides, landslides of ice at 140 mph, lawsuits increase, lawyers» income increased (surprise surprise!)

I don't have a copy of the paywalled Weber article but I wonder how they distinguished Antarctic - sourced iceberg debris from the contemporaneous collapse of the Patagonia Ice Sheet?

New studies released on Monday show that a large portion of the West Antarctic Ice Sheet may have begun a slow but «unstoppable» collapse, with the demise of these glaciers taking place sometime during the next few centuries to as many as 1,000 years from now.

The rate of release from the tundra alone is predicted to reach 1.5 billion tons of carbon per annum before 2030, contributing to accelerated climate change, perhaps resulting in sustained decadal doubling of ice loss causing collapse of the Greenland Ice Sheet (Hansen et al, 201ice loss causing collapse of the Greenland Ice Sheet (Hansen et al, 201Ice Sheet (Hansen et al, 2011).

The first version, the «baseline» case, employs a minor modification of the warming — SLR relationship from Levermann et al. (10) The second version, the «triggered» case, makes a major adjustment to explore an important possibility suggested by recent research, by assuming that an inevitable collapse of the West Antarctic Ice Sheet (WAIS) already has been set in motion (17 ⇓ — 19).

Change arising from some sources, such as volcanic eruptions or the West Antarctic Ice Sheet collapsing, may be abrupt — but they don't flip back just as quickly, centuries later.

A National Academy of Sciences report attributes a primary cause of those thunderous West Antarctic Ice Sheet iceberg collapses we often see featured in the media to geothermal heat from seabed volcanoes below.

IPCC now declares that in the 21st Century, Atlantic Ocean circulation collapse is «very unlikely,» ice sheet collapse is «exceptionally unlikely,» and catastrophic release of methane from melting permafrost is «very unlikely.»

For example, a recent ice sheet model sensitivity study finds that incorporating the physical processes of hydrofracturing of ice and ice cliff failure increases their calculated sea level rise from 2 meters to 17 meters and reduces the potential time for West Antarctic collapse to decadal time scales.

The Marcott paper is no different from Hansen» 88, Mann» 98, Mann» 99, the SPM of AR4, the drowned polar bears, the collapse of the Greenland ice sheet and glaciers everywhere.

«That means if you thin the ice enough by draining the ice away from the edges, what could happen is the ice could just start to float off and the whole ice sheet could collapse, and quite quickly.»

Predictions for the year 2100 are in the range of two to three feet, excluding any potential contributions from ice sheet collapse.

The total collapse of the Greenland ice sheet isn't going to happen anytime soon, but ice loss from Greenland is accelerating.

Most of the WAIS is grounded below sea level and has the potential to collapse if grounding - line retreat triggers a strong positive feedback whereby ocean water undercuts the ice sheet and triggers further separation from the bedrock (35 ⇓ — 37).

BBD, Your Wikipedia article on the 8.2 ka event says: «The 8.2 Ka cooling event may have been caused by a large meltwater pulse from the final collapse of the Laurentide ice sheet of northeastern North America...» [My emphasis] Even your unscientific source is doubtful.

Since melting from atmospheric heat appears not to be the cause of ice sheet «collapse», why is global warming implicated at all?

My impression from looking at the conference material is that it was indeed more or less what you would expect four years on from the 2001 IPCC report, with two very large exceptions: The potential collapse of the West Antarctic Ice Sheet (= 5 meter sea level rise) and ocean acidification (= partial ocean ecosystem collapse with a subsequent cascade of potential side effects that practically defy description).