Sentences with phrase «with polar ice»

Unfortunately, what's happening with the polar ice sheets now ought to warn humanity of what is to come.

If you ever see a good time series animation of SSTs, you will know that there is significant movement of water and temperatures within the world's oceans (like there is with polar ice extents.)

Reconstructions of past Hothouse climates had shown that temperatures had been around six degrees higher on average, and higher still in polar regions, with no polar ice - caps and a temperate to subtropical fauna and flora, as evidenced by the fossil record in these areas.

Not exact matches

Impacts of thermal expansion and melting mountain glaciers can be predicted with moderate confidence, but more uncertainty remains in the potential behavior of polar ice sheets.

We are running around with our panties in a wad because we know global warming is melting the polar ice caps.

With a shorter season of sea ice, polar bears have less access to marine mammals.

There is abundant evidence for the past presence of water on Mars but today it appears relatively dry, with water ice confined to the planet's polar caps.

A new University of Washington study, with funding and satellite data from NASA and other agencies, finds a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations, which can negatively impact the feeding and breeding capabilities of the bears.

«This study shows declining sea ice for all subpopulations of polar bears,» said co-author Harry Stern, a researcher with the UW's Polar Science Center.

As Gore shows with a litany of statistics, maps, and charts — not to mention the film's stark images of drowning polar bears, crumbling ice caps, a Katrina - lashed New Orleans, and drunken trees sliding sideways on melting permafrost — global warming is really happening.

MESSENGER's maps of polar craters match up nicely with earlier imagery of the poles, taken by Earth - based radars, which showed anomalously bright features — patches that reflected radio waves much better than the surrounding terrain, just as ice does.

POLAR BEAR VLOGS Wild female polar bears wore collars with a video camera and other instruments for a little over a week as the bears roamed sea ice off the coast of Alaska during spPOLAR BEAR VLOGS Wild female polar bears wore collars with a video camera and other instruments for a little over a week as the bears roamed sea ice off the coast of Alaska during sppolar bears wore collars with a video camera and other instruments for a little over a week as the bears roamed sea ice off the coast of Alaska during spring.

Dear EarthTalk: I read a heart - wrenching story of a polar bear that swam 400 miles with its cub on its back in search of an ice floe to rest on.

The fact lunar ice correlates so well with true polar wander implies that it predates this motion, Siegler said, making the ice very ancient.

With scientific projections showing that melting ice will dramatically increase polar shipping opportunities by 2050, the decisions could have implications for decades, analysts say.

The results, in the October 15 Science, agree with theoretical predictions, suggesting that superconducting gravimeters can help satellites chart the earth's gravity to map changes in polar ice cap thickness, seawater levels, atmospheric density and planetary geology.

This may come as a shock, but only 55 million years ago, our planet had no polar ice caps; in fact, it nearly became a steamy, runaway greenhouse world, with CO2 levels exceeding 2,500 ppm.

Because polar bears have been spending more time off the ice in recent years, they appear to have begun to interbreed with adjacent brown bear populations, and some of these hybrids are into their second generations.

And, he adds, with sulfate appearing in both polar ice caps — Arctic and Antarctic — there is «a strong consensus» that this also supports an equatorial source.

«With most [species], we can identify a localized threat, but the threat to the polar bear comes from global influences on sea ice.»

Many human communities want answers about the current status and future of Arctic marine mammals, including scientists who dedicate their lives to study them and indigenous people whose traditional ways of subsistence are intertwined with the fate of species such as ice seals, narwhals, walruses and polar bears.

As sea ice disappears, polar bears are being forced to hunt more on land, which brings them into conflict with humans and increases contact with brown bears.

* The late - summer polar ice cap, already at historic lows today, would shrink only another quarter and hold steady by century's end, instead of melting by more than three - quarters with no let - up in sight.

With Arctic sea ice melting earlier and earlier, polar bears are being forced to change their diets, scouring dry land for seabird eggs rather than enjoying their typical staple: seals.

The Antarctic blogs, whether official or personal, raise awareness of climate change issues and communicate directly with the public on current polar projects and life on the ice.

«A lot of research has shown that intrusions of warm water are responsible for melting ice along the polar coastlines and that these intrusions are steered by the shape of the seafloor,» said Jamin Greenbaum, an oceanography and geology expert at the University of Texas, Austin, who was not involved with the new study, in an email.

AS POLAR bears roam the Arctic sea ice hunting seals, they are wasteful with their energy.

Tracking experiments show female polar bears are increasingly giving birth on land rather than on pack ice, which brings them into «hybrid range» with grizzlies.

That includes mixedphase clouds, which occur in polar regions and combine supercooled water with ice.

After downloading a few files from his site and depositing them in my Celestia folder, I found myself staring at a blue planet, cloud formations swirling across its surface, its vast oceans punctuated with landmasses and polar ice caps.

With ice freezing later and thawing earlier, polar bears can't stock up on seal meat for as long, leading hungry animals to search for food in populated areas.

For the past eight years, Operation IceBridge, a NASA mission that conducts aerial surveys of polar ice, has produced unprecedented three - dimensional views of Arctic and Antarctic ice sheets, providing scientists with valuable data on how polar ice is changing in a warming world.

(See a map of the Earth as it looked towards the end of this period about 650 million years ago, when the climate was more like as it is today with mountain glaciers and polar ice.

Also, polar ice caps come and go with Mars's seasons.

Professor Mark Williams said: «The range of environments we are working with is remarkable — from polar ice and snow layers to deep lake and sea floors to the skeletons of reef corals and stalactites in caves.

«MODIS observations of polar sea ice were combined with observations of Antarctica made by the National Oceanic and Atmospheric Administration's AVHRR sensor — the Advanced Very High Resolution Radiometer.»

There were extensive polar ice caps at intervals from 350 to 260 million years ago, during the Carboniferous and early Permian Periods, associated with the Karoo Ice Aice caps at intervals from 350 to 260 million years ago, during the Carboniferous and early Permian Periods, associated with the Karoo Ice AIce Age.

On March 21, 2012, the MESSENGER team also revealed new supporting evidence that many permanently shadowed craters in Mercury's polar regions may harbor water ice insulated with a thin layer of soil or dust, or some other radar - reflecting volatile substance such as sulfur.

For example, few data are available for the polar winter, and it is not known whether aragonite - undersaturated areas decrease in size with the seasonal freezing of sea ice.

In the long term, changes in sea level were of minor importance to rainfall patterns in north western Sumatra With the end of the last Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the worlIce Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the worlice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the world..

The planet today is dry and barren, with most of its water locked up in the polar ice caps.

In the future, the polar ice caps have melted, covering the Earth with water.

With enough fire - generating explosions, lethal lasers and gunfire to thaw a polar ice cap, the plot predicaments never fluster the ever - resourceful agent who manages to keep his oh - so - cool aura in the face of impending disaster.

The seas were choked with ice even in midsummer, for tremendous storms would crack the polar ice cap and fling mountainous cliffs into the paths of their wooden vessels.

Carrying a maximum of 189 passengers, and with two stabilizers and an ice - strengthened hull, this outstanding vessel is ideal for polar expeditions.

It includes an aromatherapy steam room, showers of various temperatures and intensities, clay steam room, sauna, ice room, Jacuzzi, polar plunge pool, footbath and «sensations pool» filled with waterjets of various shapes and pressures.

So with ice floating by, we put on our game faces and challenged ourselves with the coldest of polar plunges.

Her travels have found her trekking through the Andes and Patagonia, photographing polar bears in the Arctic, walking 1400 km across Spain, photographing the wilderness of Iceland and ice climbing in Alaska... always with a camera at hand.

Along with the new destination, the polar ice caps of Mars, players can also hunt for a new relic weapon called The Valkrie and add the gun to their growing collection.

Installed in conjunction with the more traditional gallery exhibition, 33 °, the murals range from the humorous, an image of tourists wandering aimlessly across an aqua blue expanse, to a sobering, a black fissure opening stark and deep in what we are to assume is an arctic ice sheet, to the iconic, a lonely polar bear drifting on a small iceberg.