The research explains that there is an «amplifying feedback»
as polar ice melts, because as more freshwater enters the ocean, it traps warmer sea water, which melts more ice.
As polar ice melts, the oceans absorb more heat, which causes more ice to melt.
As the polar ice caps grow or melt, the surface area of the earth covered by land relative to that covered by water changes.
Based on what he's seen in the Arctic, and on the latest science, Zukunft said he's planning for six feet of sea level rise by the end of the century,
as polar ice sheets and glaciers melt.
As we measure more and more aerosol emission effects, such as soot - published in January - and check on ever - changing factors such
as polar ice reduction, more evidence makes us less likely to get it wrong.
Rapidly rising seas resulting from melting glaciers as well
as polar ice sheet nearly wiped out the Great Barrier Reef some 125,000 years earlier, according to University of Sydney researchers.
Also... Not discussed in the article...
As polar ice becomes greatly reduced, oceans will likely warm much more rapidly (similar to what happens when ice in a glass of water becomes minimal).
Sea levels inch upward
as polar ice retreats.
Anyway, in The Day After Tomorrow New Yorkers need not feel alone as the entire Northern hemisphere is subjected to freakish destructive weather
as the polar ice caps melt because of global warming and paradoxically result in temperatures dropping to sub-Arctic levels.
Both types of oak spread first to California
as polar ice caps expanded, and some of both kinds wound up east of the Rockies and headed to the East Coast and eventually to Mexico.
As the polar ice melts, getting to these resources becomes more feasible.
Not exact matches
In nature, changes of environmental conditions arise from such sources
as the melting of
polar ice - caps, explosion of dwarf stars, the fall of night.
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.
While spirituality may seem the
polar opposite of the feelings of naughtiness that drive sexual desire, it can add serious
icing to the cake when sex is viewed
as a celebration of mom and dad's love and commitment.
Many scientists think these permanently shadowed regions, such
as the floors on impact craters in the Moon's
polar regions, could hold large deposits or water
ice.
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.
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 sp
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 sp
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 spring.
The researchers identified several key circulation patterns that affected the winter temperatures from 1979 to 2013, particularly the Arctic Oscillation (a climate pattern that circulates around the Arctic Ocean and tends to confine colder air to the
polar latitudes) and a second pattern they call Warm Arctic and Cold Eurasia (WACE), which they found correlates to sea
ice loss
as well
as to particularly strong winters.
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.
The Interior Department lists the
polar bear
as a «threatened» species — one at risk of becoming endangered — due to dangerous declines in their sea
ice habitat
One «growing phenomenon in the Arctic [is]
polar bears foraging on land
as their primary habitat, sea
ice, retreats,» Kintisch writes, which makes field work even more dangerous, and difficult, than it would be otherwise.
As a warming climate continues to accelerate the summer
ice melts, it is important to understand how
polar bears are — or are not — adapting to even more extreme food shortages.
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.
These particles can build up electric charges faster than the soil can dissipate them and may cause sparking, particularly in the
polar cold of permanently shadowed regions — unique lunar sites
as cold
as minus 240 degrees Celsius and known to contain water
ice.
He first thought that the shift might be a result of global warming,
as melting
polar ice flowed toward the equator.
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.
Fox accompanies a team of NASA scientists
as they drive a refurbished orange Humvee across a frozen channel in the Canadian High Arctic, facing melting sea
ice, mechanical breakdown, and the threat of marauding
polar bears.
As such, there is a direct relation between the
polar cod and the
ice algae, which could ultimately threaten the young
polar cod's survival.
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.
The U.S. Department of the Interior Wednesday listed the
polar bear
as a threatened species under the Endangered Species Act (ESA) of 1973 based on evidence that the animal's sea
ice habitat is shrinking and is likely to continue to do so over the next several decades.
«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.
Wild card: McCain and Palin sat on opposite sides of the
ice floe when it came to deciding whether the
polar bear should be listed
as an endangered species earlier this year.
GLITTERING across the briny surface of newly formed sea
ice, frost flowers are
as bewitching to
polar scientists
as Homer's sirens — luring them and their instrument - laden sleds to the treacherous boundary between
ice and sea.
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.
Many of the projected effects of climate change on the world's oceans are already visible, such
as melting
polar ice caps and rising sea levels.
Unique to the
polar region, pancake
ice forms over time
as ice crystals coagulate into thicker plates, whose edges often get rounded and raised
as a result of bumping into other plates.
As climate change causes sea
ice to shrink, the number of «problem»
polar bears appears to be increasing.
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.
«I'm amazed how many people say «
polar ice caps» — it's totally unscientific and not, not something we ever talk about
as researchers!»
Reviews range from simple comments such
as «this is a good piece of science journalism» to detailed scientific explanations such
as how «
polar ice cap» fails to distinguish between land
ice and sea
ice.
Our study suggests that at medium sea levels, powerful forces, such
as the dramatic acceleration of
polar ice cap melting, are not necessary to create abrupt climate shifts and temperature changes.»
It basically puts the Southern Ocean up front
as the most significant control on the evolution of the
polar ice sheet.»
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 Surve
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 Surve
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 Surve
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.
Some changes are well - known, such
as declines in
polar bear populations and stresses to walruses being forced out of their shallow feeding grounds
as ice retreats into deeper waters.
And the number of
polar bears in the southern edge of their range, the Hudson Bay, have drastically decreased
as sea
ice is present for shorter and shorter amounts of time, he notes.
Reductions in sea
ice in the Arctic have a clear impact on animals such
as polar bears that rely on frozen surfaces for feeding, mating and migrating.
As sea
ice disappears,
polar bear populations will crash harder than the seabirds.
As their hunting behavior shifts from
ice to land, the
polar bears «have progressively arrived earlier and earlier to have access to more eggs,» says biologist Børge Moe, another principal author of the study who works at the Norwegian Institute for Nature Research in Kongsfjorden, where seabird egg predation is just beginning to increase.