Sentences with phrase «for global sea ice»

Update for Global Sea Ice Area spiral for Jan 31 2017.

Not exact matches

We have much better — and more conclusive — evidence for climate change from more boring sources like global temperature averages, or the extent of global sea ice, or thousands of years» worth of C02 levels stored frozen in ice cores.

According to the Center for Remote Sensing of Ice Sheets (CReSIS), an NSF Science and Technology Center led by the University of Kansas, the melt from Greenland's ice sheet contributes to global sea level rise at a rate of 0.52 millimeters annualIce Sheets (CReSIS), an NSF Science and Technology Center led by the University of Kansas, the melt from Greenland's ice sheet contributes to global sea level rise at a rate of 0.52 millimeters annualice sheet contributes to global sea level rise at a rate of 0.52 millimeters annually.

Oceanography postgraduates, for example, might study how coastal dynamics affect amphibious warfare, or how decreasing polar sea ice might influence global climate patterns.

GREENLAND lost 1500 cubic kilometres of ice between 2000 and 2008, making it responsible for one - sixth of global sea - level rise.

Scientists from Rice University and Texas A&M University - Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts when the planet's glaciers melted during the period of global warming at the close of the last ice age.

«If our results are representative, then sea ice plays a greater role than expected, and we should take this into account in future global CO2 budgets,» says Dorte Haubjerg Søgaard, PhD Fellow, Nordic Center for Earth Evolution, University of Southern Denmark and the Greenland Institute of Natural Resources, Nuuk.

Whereas most studies look to the last 150 years of instrumental data and compare it to projections for the next few centuries, we looked back 20,000 years using recently collected carbon dioxide, global temperature and sea level data spanning the last ice age.

It also reviews recent scientific literature on «worst - case» global average sea - level projections and on the potential for rapid ice melt in Greenland and Antarctica.

«Global warming «pause» may last for 20 more years, and Arctic sea ice has already started to recover,» the Daily Mail says.

Your feature on uneven global distribution of sea level rise as ice sheets melt highlights a double whammy for northern...

Interior Secretary Dirk Kempthorne, however, made clear several times during a press conference announcing the department's decision that, despite his acknowledgement that the polar bear's sea ice habitat is melting due to global warming, the ESA will not be used as a tool for trying to regulate the greenhouse gas emissions blamed for creating climate change.

It could lead to a massive increase in the rate of ice sheet melt, with direct consequences for global sea level rise.»

In a study published in the actual volume of Nature Communications, geo - and climate researchers at the Alfred - Wegener Institute, Helmholtz Centre for Polar - and Marine Research (AWI) show that, in the course of our planet's history, summertime sea ice was to be found in the central Arctic in periods characterised by higher global temperatures — but less CO2 — than today.

The grim bottom line (for those emerging from recently melted ice caves): Bring carbon dioxide emissions under control within the next few years or face serious consequences, including rising sea levels, reduced agricultural productivity and a global economic downturn.

Global warming has caused big problems for polar bears, which depend on sea ice for access to the ocean so they can hunt seals and other prey.

A graph showing global sea ice levels hitting unprecedented lows for this time of year has caused a social media storm.

It's a research approach new to glaciology that could lead to more accurate predictions for ice - mass loss and global sea - level rise.

(This status allowed the Administration to create a special rule exempting greenhouse gas emissions — which are, through global warming, melting the artic sea ice used by the polar bears for hunting — from regulation under the Endangered Species Act.)

That's bad news for global sea levels as well as would - be ice dwellers.

The sea ice in the Arctic is considered a critical element in climate processes, and a valuable early - warning system for global warming.

The consequences of global sea level rise could be even scarier than the worst - case scenarios predicted by the dominant climate models, which don't fully account for the fast breakup of ice sheets and glaciers, NASA scientists said today (Aug. 26) at a press briefing.

The Greenland ice sheet is thought to be one of the largest contributors to global sea level rise over the past 20 years, accounting for 0.5 millimeters of the current total of 3.2 millimeters of sea level rise per year.

Current projections of global sea level rise do not account for the complicated behavior of these giant ice slabs as they interact with the atmosphere, the ocean and the land.

The Nature article comes as climate scientists published what they said today was the «best ever» collection of evidence for global warming, including temperature over land, at sea and in the higher atmosphere, along with records of humidity, sea - level rise, and melting ice.

Scientists naturally suspect global warming is responsible for both Antarctica's surprising increase and the Arctic's long - term dwindling of sea ice.

As of January 17, for instance, the global extent (area) of sea ice is at its smallest point in potentially thousands of years.

Reinhard was awarded for his work in investigating how the potential disintegration of Antarctic floating ice shelves could contribute to increased ice flow from inland glaciers, and a resulting rise in global sea levels.

Drews was awarded for his work in investigating how the potential disintegration of Antarctic floating ice shelves could contribute to increased ice flow from inland glaciers, and a resulting rise in global sea levels [5].

«Sea ice status now; projection for rest of melt season, implications to extreme weather events and global food supply.»

During glaciation, water was taken from the oceans to form the ice at high latitudes, thus global sea level drops by about 120 meters, exposing the continental shelves and forming land - bridges between land - masses for animals to migrate.

This study links a framework for global and local sea - level rise projections with simulations of two major mechanisms by which climate change can affect the vast Antarctic ice sheet.

This implies that large - scale observations — for example, of global mean sea - level change or of the change mass of the Antarctic ice sheet — will not on their own significantly narrow the range of late - century sea - level projections for decades to come.

Global warming induced by increasing CO2 will cause ice to melt and hence sea level to rise as the global volume of ice moves toward the quasi-equilibrium amount that exists for a given global temperatureGlobal warming induced by increasing CO2 will cause ice to melt and hence sea level to rise as the global volume of ice moves toward the quasi-equilibrium amount that exists for a given global temperatureglobal volume of ice moves toward the quasi-equilibrium amount that exists for a given global temperatureglobal temperature [53].

Thus the entire 3 — 4 meters of global sea level contained in that ice sheet may be vulnerable to rapid disintegration, although arguments for stability of even this marine ice sheet have been made [94].

«Environmental scientists have been saying for some time that the global economy is being slowly undermined by environmental trends of human origin, including shrinking forests, expanding deserts, falling water tables, eroding soils, collapsing fisheries, rising temperatures, melting ice, rising seas, and increasingly destructive storms,» 6.

For three particular mismatches — sea ice loss rates being much too low in CMIP3, tropical MSU - TMT rising too fast in CMIP5, or the ensemble mean global mean temperatures diverging from HadCRUT4 — it is likely that there are multiple sources of these mismatches across all three categories described above.

The implications of considering Arctic sea - ice - free conditions for the transformation of the global energy system are severe.

knowing that, all things being equal, el ninos coming and going big or small, forest fires coming and going, sea ice melting ongoing, permafrost melting ongoing then that 410 ppm number for global climate forcing will very soon, in weeks or months, come back and never go lower again.

due to co2 we are already living in a greenhouse.Whatever one does in that greenhouse will remain in the greenhouse.INDUSTRIOUS HEAT will remain in the greenhouse instead of escaping into outer space; this is a far greater contributor to global warming than other factors and far more difficult to reduce without reducing economic activity.Like warm moist air from your mouth on cold mornings so melting antarctic ice will turn into cloud as it meets warm moist air from tropics the seas will not rise as antarctica is a huge cloud generator.A thick band of cloud around the earth will produce even temps accross the whole earth causing the wind to moderate even stop.WE should be preparing for this possible scenario»

While methane is short - lived, all it has to do is shift the global energy balance for a while, to trigger irreversible loss of tundra methane, loss of Arctic sea ice cover and more calthrate loss, then loss of ice sheets and everything else Hansen et al promise.

With error bars provided, we can use the PIOMAS ice volume time series as a proxy record for reality and compare it against sea - ice simulations in global climate models.

And that is the most hopeful positive spin I can muster atm, given that CO2 ppm and Global SSTs and Arctic Sea Ice are all Proxies for Climate Change Impacts now and ongoing.

Global climate model projections (in CMIP3 at least) appear to underestimate sea ice extent losses with respect to observations, though this is not universally true for all models and some of them actually have ensemble spreads that are compatible with PIOMAS ice volume estimates and satellite observations of sea ice extent.

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

But the same paucity of ice, which Arctic climate specialists say is driven increasingly by global greenhouse warming, has made it easy for an enormous bulk carrier, the MV Nordic Barents, to achieve a new feat of northern navigation — carrying more than 40,000 tons of concentrated iron ore from Kirkenes, Norway, along the Northern Sea Route over Russia and, as of yesterday, out of the Arctic Ocean on its way to a Chinese port.

The first web page also has a link to global sea ice extent, and that shows that it is at a record low for the this day of the year, and has been very low for most of the year.

I've been criticized by some environmentalists in recent years for writing that the long - term picture (more CO2 = warmer world = less ice = higher seas and lots of climatic and ecological changes) is the only aspect of human - caused global warming that is solidly established, and that efforts to link dramatic weather - related events to the human influence on climate could backfire should nature wiggle the other way for awhile.

Thus, articles that link the loss of Arctic sea ice to global warming are acceptable, and any news article on Arctic sea ice will generally touch on the role of global warming — usually with a mention for polar bears, which are indeed cute (not too cuddly, tho).

I can't wait for the explanations when that happens — as in that movie «The Day After,» in which it is revealed that global warming actually leads to an ice age because the Gulf Stream gets re-routed and no longer warms the North Sea.