Sentences with phrase «warming ice polar»

Not exact matches

All this will become increasingly accessible if global warming melts the polar ice, a phenomenon already transforming northern communities.

Global warming would also cause the polar ice caps and mountain glaciers to melt rapidly.

But when tree rings, pollen counts in polar ice, and temperature records from multiple places around the world all point in the same direction, we become increasingly confident that global warming is a reality.

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

To keep the big polar ice sheets largely intact and prevent massive flooding will require limiting warming to just 2 °C.

Scientists now believe that the projected decreases in the polar sea ice due to global warming will have a significant negative impact or even lead to extinction of this species within this century.

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.

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.

Mori et al. identified two circulation patterns that drove winter temperatures in Eurasia from 1979 to 2013: the Arctic Oscillation (which confines colder air to the polar latitudes) and a pattern dubbed «Warm Arctic and Cold Eurasia» (WACE), which correlated both to sea - ice loss in the Barents - Kara Sea and to particularly cold winters; its impact has more than doubled the probability of severe winters in central Eurasia.

Kite and Rubin have proposed that new Cassini data can test this idea by revealing whether or not the ice shell in the south polar region is warm.

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.

The more intensive variations during glacial periods are due to the greater difference in temperature between the ice - covered polar regions and the Tropics, which produced a more dynamic exchange of warm and cold air masses.

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.

He first thought that the shift might be a result of global warming, as melting polar ice flowed toward the equator.

The negative impacts of warmer winters may be less evident in Nordic countries than in places like Alaska, where people and animals like polar bears and seals are more dependent on the presence of sea ice, according to Serreze.

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.

But Cvijanovic and her colleagues wanted to understand the effects of disappearing polar ice, independent of global warming.

The research is timely given the extreme winter of 2017 - 2018, including record warm Arctic and low sea ice, record - breaking polar vortex disruption, record - breaking cold and disruptive snowfalls in the United States and Europe, severe «bomb cyclones» and costly nor'easter s, said Judah Cohen, director of seasonal forecasting at AER and lead author of the study.

The two main forces that conspire to destroy Earth's massive polar ice sheets are heat, which melts their surfaces via sunlight and warm air, and gravity, which drives glaciers to slide to the sea.

In the San Francisco Bay area, sea level rise alone could inundate an area of between 50 and 410 square kilometres by 2100, depending both on how much action is taken to limit further global warming and how fast the polar ice sheets melt.

Warm air and surface water are melting the summer polar ice cap.

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.

Black carbon warms the atmosphere because of its ability to absorb radiation from the sun, but its effect can be especially pernicious in polar regions, where, falling on bright ice, the soot diminishes the regions» ability to reflect away heat.

Since the 1970s the northern polar region has warmed faster than global averages by a factor or two or more, in a process of «Arctic amplification» which is linked to a drastic reduction in sea ice.

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.

(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.)

«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.

On its own, sea level rise could inundate between 50 and 410 square kilometres of this area by 2100, depending on how much is done to limit further global warming and how fast the polar ice sheets melt.

Since the Artics» sea - ice cover is shrinking due to global warming, the polar region takes up more heat.

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.

A new modeling study to be published in the Journal of Climate shows that stronger polar winds lead to an increase in Antarctic sea ice, even in a warming climate.

And of course, the future fate of the ice sheets and how they will dynamically respond to climate warming is hugely important for projections of sea level rise and polar hydrology.

Because of the warming, «there are some potentially catastrophic events that must be considered,» including sea level rise from melting polar ice sheets, according to the document.

Bacteria, however, have remained Earth's most successful form of life — found miles deep below as well as within and on surface rock, within and beneath the oceans and polar ice, floating in the air, and within as well as on Homo sapiens sapiens; and some Arctic thermophiles apparently even have life - cycle hibernation periods of up to a 100 million years while waiting for warmer conditions underneath increasing layers of sea sediments (Lewis Dartnell, New Scientist, September 20, 2010; and Hubert et al, 2010).

But there is evidence that the Red Planet had a warmer and wetter past: dried - up river beds, polar ice caps, volcanoes and minerals that form in the presence of water have all been found.

The planet is getting warmer, ocean temperatures are rising, the polar ice caps are melting, and all of the incontrovertible science of climate change is that more extreme - weather events are an inevitable consequence.

Atmospheric warming is followed by ocean warming is followed by a melting of polar ice sheets is followed by sea level rise.

Polar species, including the polar bear, ice - dependent seals, and emperor penguins are especially vulnerable to the effects of climate change as their unique sea ice habitats shrink due to warming.

Now the question is, can the real climate scientists come forward and present the truth about global warming, or are we in for more ridiculous predictions about an ice free arctic by 2013 and the extinction of polar bears?

By Kenneth Richard Geophysicist and tectonics expert Dr. Aftab Khan has unearthed a massive fault in the current understanding of (1) rapid sea level rise and its fundamental relation to (2) global - scale warming / polar ice melt.

•» Hence, both regional and local sea - level rise and fall in meter - scale is related to the geologic events only and not related to global warming and / or polar ice melt.»

Current studies include the exploration of Arctic deep - sea life under the ice, and the long - term observation of the effects of global warming on polar ecosystems as well as on hypoxic aquatic ecosystems.

Often photographed clinging to Arctic ice floes as its habitat melts away into warming waters, the polar bear is the poster child for U.S. efforts to save wildlife on the brink of extinction using the Endangered Species Act.

Apparent global warming that was progressively melting more and more of the north polar ice sheet each year has been countered by progressive expansion of the south polar ice sheet.

Because they depend on sea ice to hunt seals, the polar bear is considered threatened as global warming melts and thins ice in this region.

For Hannes Jaenicke, tough - guy actor and animal welfare campaigner, polar bears are more than a symbol of global warming and shrinking Arctic ice.

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.

Reading Robert Pondiscio's recent article («The Left's drive to push conservatives out of education reform») calls to mind Al Gore's «An Inconvenient Truth» and its powerful image of a polar bear drifting helplessly on a shrinking sheet of ice in a warming sea.

Rising Seas: Warmer ocean water temperatures, the pumping of ground water, and melting of the polar ice sheets have added water to the oceans, contributing to sea level rise.

That include melting of polar ice caps, economic consequences, warmer waters and more hurricanes or disasters, the spread of diseases and earthquakes.