Sentences with phrase «possible ice change»

IPCC (2001a), pp. 641 - 42, projected between 0.1 and 0.9 m rise including ice melting; IPCC (2007b), p. 13 projects 0.2 to 0.6 m explicitly excluding possible ice change surprises.

Not exact matches

Ice, I'm not going to try to change your mind mate, but the ESPN broadcast was as full of it as is possible.

Again, while I am not a scientist or medical doctor, I don't necessarily agree, especially if the amount of what Bob Cantu calls «total brain trauma» can be significantly reduced through a combination of limits on full - contact practices and / or hit counts, rule changes, and if we do a better job of identifying concussive injury to get concussed players off the field (or ice, or field, or court, or pitch), and and hold kids out longer before they are allowed to return to play so the risk of reinjury is reduced as much as reasonably possible.

This magma plume isn't an alternative possible cause of recent upticks in melting along the West Antarctic Ice Sheet attributed to human - generated climate change.

Following the maxim of keeping everything as simple as possible, but not simpler, Will Steffen from the Australian National University and I drew up an Anthropocene equation by homing in on the rate of change of Earth's life support system: the atmosphere, oceans, forests and wetlands, waterways and ice sheets and fabulous diversity of life.

As well as changes in sea ice, they considered other possible explanations for the changing behaviour observed.

However, as climate change raises global air temperatures, it is possible that East Antarctic glaciers could start melting, a change that could make the ice sheet shift back into unstable territory.

The data tell a far different story: «The observations in the last 10 years are, whoa, ice sheets change far more dramatically, both in terms of magnitude of change and timescale, than we experts ever thought possible,» Bindschadler said.

This new research nicely demonstrates that if you change the load on a volcanic mountain — for example by removing some ice — the likelihood of a mechanical collapse and possible ensuing eruption will be slightly increased.

It's possible that even older photographs in the Danish archive could be used in a similar way to provide even more pre-satellite observations of changes to Greenland's ice, as well as more in - depths studies of particular glaciers

Possible mechanisms include (vii) changes in ocean temperature (and salinity), (viii) suppression of air - sea gas exchange by sea ice, and (ix) increased stratification in the Southern Ocean.

A number of recent studies linking changes in the North Atlantic ocean circulation to sea ice extent led Yeager to think that it would also be possible to make decadal predictions for Arctic winter sea ice cover using the NCAR - based Community Earth System Model...

This fall, NASA will launch the Ice, Cloud, and land Elevation Satellite - 2 (ICESat - 2), which will use a highly advanced laser instrument to measure the changing elevation of ice around the world, providing a view of the height of Earth's ice with greater detail than previously possibIce, Cloud, and land Elevation Satellite - 2 (ICESat - 2), which will use a highly advanced laser instrument to measure the changing elevation of ice around the world, providing a view of the height of Earth's ice with greater detail than previously possibice around the world, providing a view of the height of Earth's ice with greater detail than previously possibice with greater detail than previously possible.

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 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 years.

They state that these changes are a possible sign of a progressive collapse of these ice streams, in response to the high melting of their buttressing ice shelves.

It's possible that both animals entered the Atlantic via the Northwest Passage, which has been partially free of ice for brief periods during the past four years — a phenomenon attributed to climate change.

The cooling trend due to reduction of CO2 and changes in climate associated with changes in the geography eventually allowed Northern Hemisphere ice sheets to form, whereafter the strong amplification of Milankovic was possible.

If I read the some of the conclusions in the latest report on Abrupt Climate Change from the US Climate Change Science Program http://www.climatescience.gov/Library/sap/sap3-4/final-report/default.htm, in particular Chapter 2, it would seem possible to come up with multiple feet of sea level rise due to the understanding of ice dynamics.

The scientific question is when will the Arctic be free of ice (not whether, although it's possible that it will not be — if human activities change in a way not reflected in any of the models).

What is still contentious is what the result implies for the YD climate change and the megafaunal extinctions, incorporating the ideas of both the broad large scale cometary debris impact scenario at low grazing angles, and the direct asteroidal impact into water and ice covered surfaces, and all that implies with the ice sheet disruptions, megatsunamis and the ozone layer and atmospheric effects and disruption that are possible in these events.

This analysis will reveal new insights about model biases, their causes, and about the role of natural variability in long - term change.It is possible that this analysis will change the predicted timing of the «ice free summers» but large uncertainties will likely remain.

He said some Russian colleagues mentioned another possible incident in the 1990s when Arctic surface ice seemed to change in relation to seabed volcanic activity.

A particularly good example is that of abrupt climate change, as recorded in Greenland ice cores, which few scientists thought was likely, or even possible, prior to those discoveries.

If CO2 changes drive both ice ages and SSTs, and we are pumping CO2 into the air at a faster rate than naturally possible, don't you think there's cause for alarm?

The risk facing humanity is that climate change could spiral out of control and it will no longer be possible to arrest trends such as ice melting and rising sea level.

No detailed assessment of the speed of change involved seems to have been made within the literature (though it should be possible to make such assessments from the ice core record), but the short duration of these events at least suggests changes that took only a few decades or less to occur.

You might like to look at «A changing Arctic seasonal ice zone: Observations from 1870 — 2003 and possible oceanographic consequences» 2007 by Kinnard et al..

«Changes in the Poleward Energy Flux by the Atmosphere and Ocean as a Possible Cause for Ice Ages.»

In his Environmental Research Letters paper Hansen claims that the IPCC 2007 figures are low because the IPCC says it is unable to evaluate possible dynamical responses of the ice sheets and therefore its figures do not include any possible rapid dynamical changes in ice flow.

Changes occurring in marine terminating outlet glaciers of the Greenland Ice Sheet and ice shelves fringing the Antarctic Peninsula have altered our sense of the possible rate of response of large ice sheet - ice shelf systeIce Sheet and ice shelves fringing the Antarctic Peninsula have altered our sense of the possible rate of response of large ice sheet - ice shelf systeice shelves fringing the Antarctic Peninsula have altered our sense of the possible rate of response of large ice sheet - ice shelf systeice sheet - ice shelf systeice shelf systems.

Possible increases in storm intensity, rising sea levels, and changes in ice duration and concentration, are projected to increase the severity of negative impacts progressively, particularly by mid-century (Forbes et al., 2004).

It is apparent to us that Tillerson was seeing climate change in a different light: the global warming trend was having the effect of making it possible to drill for oil in areas that had heretofore been too covered in thick ice to make drilling feasible.

The possible link between Arctic change and mid-latitude weather is the focus of the conference, and even if the researchers don't have all the answers yet, there is an emerging consensus that melting Arctic sea ice is fundamentally changing the the way air masses and weather systems whirl around the Northern Hemisphere.

A number of climate scientists are currently investigating the possible link between abnormal jet streams and the rapid loss of Arctic sea ice, which if true would mean climate change may not only be exacerbating heatwaves but cold spells as well.

The climate change had already affected the seas around Antarctica and is warming some coastal waters.So now both Antarctic Peninsula and West Antarctica Ice sheet are losing ice.For now, the East Antarctic Ice sheet is stable but it will influence on global climate change due to sea ice.In the future there is growing concern about the possible impact of climate change.Is Antarctica gaining ice that meant it will effect to climate change and the ecosystem of the regioIce sheet are losing ice.For now, the East Antarctic Ice sheet is stable but it will influence on global climate change due to sea ice.In the future there is growing concern about the possible impact of climate change.Is Antarctica gaining ice that meant it will effect to climate change and the ecosystem of the regioice.For now, the East Antarctic Ice sheet is stable but it will influence on global climate change due to sea ice.In the future there is growing concern about the possible impact of climate change.Is Antarctica gaining ice that meant it will effect to climate change and the ecosystem of the regioIce sheet is stable but it will influence on global climate change due to sea ice.In the future there is growing concern about the possible impact of climate change.Is Antarctica gaining ice that meant it will effect to climate change and the ecosystem of the regioice.In the future there is growing concern about the possible impact of climate change.Is Antarctica gaining ice that meant it will effect to climate change and the ecosystem of the regioice that meant it will effect to climate change and the ecosystem of the regions?

So it is possible that it is not a change in temperature that has allowed these very old mosses to be uncovered, but a change in the rate that snow has been falling in the particular local, which has changed the steady state ice coverage.

Though the Tibetan earthquake was going to happen at some time, it is possible that changes in ice loading on Himalayan glaciers, changes in water volume outflows in the annual Asian monsoon, and sea level rise adding pressure to the geological plates below coastlines — especially in low - lying Bangladesh — had an impact.

Concensus AGW science predicts «X» as a consequence of «A.» But that doesn't mean it has to happen — it's still possible that AGW is sound but there something quirky about the Arctic that they missed, or that the changes will happen more slowly than expected, so it won't warm faster than the globe and / or sea ice won't decline.

As the Antarctic sea ice reached record levels, scientists floated several hypotheses, including possible changes in the ozone hole over Antarctica, or increased amounts of fresh water — which freezes more easily — on the surface of the ocean around Antarctica.

I spent a week listening to 80 paleoclimatoligists and climate modelers argue about the interpretation of the data from ice and sediment cores, how it eliminated some proposed explanations for what was driving the changes in temperature and rainfall, and how it suggested other possible explanations.

Indeed, the long lifetime of fossil fuel carbon in the climate system and persistence of the ocean warming ensure that «slow» feedbacks, such as ice sheet disintegration, changes of the global vegetation distribution, melting of permafrost, and possible release of methane from methane hydrates on continental shelves, would also have time to come into play.

This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high - latitude snow cover, changes in Arctic - region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and / or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature / precipitation anomalies and extreme weather events over northern continents.

By an intelligent diversion of warm ocean - currents together with some means of colouring snow so that the sun could melt it, it might be possible to keep the Arctic ice - free for one summer, and that one year might tip the balance and permanently change the climate of the northern hemisphere.

In addition, a study commissioned by Canada's Fisheries and Oceans Department examined the relationship between air temperature and sea ice coverage, concluding, «the possible impact of global warming appears to play a minor role in changes to Arctic sea ice.»

With these trends in ice cover and sea level only expected to continue and likely worsen if atmospheric carbon dioxide levels continue to rise, they could alter the stresses and forces fighting for balance in the ground under our feet — changes that are well - documented in studies of past climate change, but which are just beginning to be studied as possible consequences of the current state of global warming.

Finally, very little work has been done on the Antarctic sea ice system in terms of possible abrupt change.

Opening with a biographical sketch of Broecker — who, we learn, was born to an Evangelical suburban Chicago family, and initially drifted into his scientific vocation via a summer job in a radiocarbon dating lab — the book explains the currently - accepted Milankovitch theory of Ice Age glaciation; proceeds to an account of the Dr. David Keeling's measurements atmospheric CO2; continues with a summary of research work on glacial ice cores, sediments, and fossil pollen from around the world showing startlingly abrupt prehistoric climate changes; and moves on to the possible consequences of continued warming, closing with an account of the prospects of removing carbon dioxide from the atmospheIce Age glaciation; proceeds to an account of the Dr. David Keeling's measurements atmospheric CO2; continues with a summary of research work on glacial ice cores, sediments, and fossil pollen from around the world showing startlingly abrupt prehistoric climate changes; and moves on to the possible consequences of continued warming, closing with an account of the prospects of removing carbon dioxide from the atmospheice cores, sediments, and fossil pollen from around the world showing startlingly abrupt prehistoric climate changes; and moves on to the possible consequences of continued warming, closing with an account of the prospects of removing carbon dioxide from the atmosphere.

From the most - recent high - resolution reconstructions from ice cores, it is possible to observe that changes in CO2 have never been as fast as in the past 150 years.

Maslowski in 2007 showed for the Arctic that you show more significant changes to the ocean and sea ice, which besides explaining why warming of surface air is lagging is the worst possible outcome as warm surface air by itself is relatively benign, but a restructured ocean - ice boundary system will result in major changes to coastal and continental weather in the long run.

According to Petit et al. [2] the same sequence of events in each glacial termination involved «orbital forcing (with a possible contribution of local insolation changes) followed by two strong amplifiers, greenhouse gases acting first, then deglaciation and ice - albedo feedback».