Sentences with phrase «for polar ice»

What this figure does not include is three recent estimates for the polar ice sheets that came out over the last month.

It is certainly possible and may be likely for the polar ice sheets to disappear, causing sea level rise (SLR) of 22 + / - 10 metres over coming millennia.

1 (kim) Watch the Argos bouys for dropping sea temperatures, the RSS and UAH satellite thermometers for cooling tropospheric temperatures, Bob B's links for sea level dropping, and cryosphere for polar ice anomalies.

«Climate change is accelerating towards the tipping points for polar ice sheets.

Models of mountain (alpine) glaciers are applied to solve similar problems to those models used for polar ice sheets, but typically have a higher resolution (a smaller grid size) and need to consider the effects of steep and often variable bed slopes, and the transverse stresses found in valley glaciers.

Not exact matches

If all I had to eat for dinner was our salad course, I would have been as happy as a polar bear in a bucket of ice cubes.

which blamed the Tahoe for heat - trapping gasses and melting polar ice caps.

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.

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

Species targeted include the polar bear, already under threat due to climate change: Shrinking sea ice makes it harder for the animals to hunt seals, their main food source.

False assumptions on starvation «Unless you've been living under a rock the last few decades, you're aware that Arctic Sea ice is melting, and that this is potentially bad news for polar bears,» she said, adding that until now, the prevailing belief has been that «energy from food on land is largely inconsequential.»

And researchers are not yet certain polar bears — which on ice lie in wait for, rather than chase after, prey — can do so on land.

Last, but not least, the Next Wave staff has collected a number of great resources for wannabe polar researchers, as well as those that simply love the world of ice.

Not much grows in the icy polar regions, but for the fern - like clusters of ice crystals called frost flowers this is the perfect environment, especially when it's still and dry.

The most striking result, researchers said, is the consistent trend across all polar bear regions for an earlier spring ice melt and a later fall freeze - up.

For more than a decade these Earth - observing satellites have provided some of the first environmental measurements on a global scale, including large - scale changes in the mass of polar ice.

Overall, eight subpopulations show signs of decline, including some groups of polar bears and seals that depend on winter ice for feeding and reproduction.

«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.

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.

The polar bear is a semi-aquatic marine mammal that depends mainly upon the pack ice and the marine food web for survival.

The analysis shows that the critical timing of the sea ice break - up and sea ice freeze - up is changing in all areas in a direction that is harmful for polar bears.

That corresponds to a roughly 3 1/2 week shift at either end — and seven weeks of total loss of good sea ice habitat for polar bears — over the 35 years of Arctic sea ice data.

The International Union for the Conservation of Nature (IUCN), which maintains the international «Red List» of threatened species, considers the polar bear «vulnerable» due to climate change - induced retreating sea ice.

The case of this one polar bear and the failure of her offspring to survive in the new environmental conditions of the Arctic doesn't bode well for the future of the species, especially as Arctic sea ice continues to retreat at a record pace.

Operation IceBridge, NASA's airborne survey of polar ice, is flying in Greenland for the second time this year, to observe the impact of the summer melt season on the ice sheet.

When polar bears» feeding opportunities decrease during the summer ice melt, the animals can reduce their energy expenditure a little, but not enough to make up for the food shortages, a study in the 17 July issue of Science shows.

Reindeer and polar foxes were found in Central Europe during the Ice Age, for example, but they withdrew northwards as the climate became warmer,» says Postdoctoral Fellow Christopher Sandom, Aarhus University.

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

«For the first time, we've been able to use a special net directly below the sea ice to catch a large number of polar cod, and therefore to estimate their prevalence over a large area.

All the fish were in top condition, which suggests that there was enough food under the ice, making the sea ice a true nursery ground for polar cod.

«That means the rapid retreat of Arctic sea ice poses an especially serious threat for polar cod.

If the polar cod population in the Barents Sea actually does shrink, the juvenile fish under the ice of the Eastern Arctic could become even more important — especially in order to make up for losses elsewhere.

IMAGES of polar bears drifting on isolated chunks of ice made the species a poster child for the perils of climate change.

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.

This past September the National Snow and Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19ice covering the Arctic Ocean than at any time since satellite measurements began in 1979.

«I've accepted that the loss of sea ice, not subsistence [hunting of the animal] or the oil and gas industries, is the reason for the threat to the polar bears,» which are already protected by the more stringent Marine Mammal Protection Act of 1972, Kempthorne said.

Although water ice was known to exist at the polar caps of Mars (see ScienceNOW, 28 May, 2002), Mars Express has now observed its spectroscopic signature for the first time.

The decision was based on evidence that sea ice is vital for polar bear survival, that this sea ice habitat has been reduced, and that this process is likely to continue; if something is not done to change this situation, the polar bear will be extinct within 45 years, Kempthorne said.

«For example, in some parts of the Arctic, such as the Chukchi Sea, polar bears appear healthy, fat and reproducing well — this may be because this area is very ecologically productive, so you can lose some ice before seeing negative effects on bears.

Mr Gore says: «A new scientific study shows that for the first time they are finding polar bears that have actually drowned swimming long distances up to 60 miles to find the ice.

IT WILL be little consolation to hungry polar bears in northern Manitoba, Canada, who have had to wait weeks longer than usual for sea ice to form on Hudson Bay, but their habitat is not irreversibly doomed.

The ice - tank trials were intended to evaluate potential heavy polar icebreaker designs for the future fleet, says Alana Miller, a Coast Guard representative.

Discussions about the consequences of the vanishing ice usually focus either on the opening up of new frontiers for shipping and mineral exploitation, or on the plight of polar bears, which rely on sea ice for...

But over the past decades, the melt season has grown longer and the average extent of Arctic sea ice has diminished, changing the game for many Arctic marine mammals — namely beluga, narwhal and bowhead whales; ringed, bearded, spotted, ribbon, harp and hooded seals; walruses; and polar bears.

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.

Sea ice is a crucial part of the ecosystems at both poles, providing habitat and influencing food availability for penguins, polar bears and other native species.

As a result of atmospheric patterns that both warmed the air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.

The hunt for extreme oil proceeds apace in the ultradeep waters off the coasts of Ghana and Nigeria, in the sulfur - laden depths of the Black Sea, under the polar ice caps, and in the gummy tar sands of Venezuela's Orinoco Basin and Canada's McMurray Formation.

Some species win, others don't Meanwhile, the loss of sea ice is making life harder for some marine animals, including polar bears and walruses, that rely on sea ice to hunt, breed and rear their young.

A short skim through the text below this classic climate change image is often all it takes for glaciologist Twila Moon to find the words that set her teeth on edge: polar ice caps.