Sentences with phrase «polar ocean ice»
When both polar ocean ice sheaths are tracked together, this year is back below the quarter - century sea - ice average again.
https://dotearth.blogs.nytimes.com/ Not exact matches
Human action would lead to the melting of the polar ice caps and the consequent rise of ocean levels.
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.
Polar ice reflects more sunlight back into space than polar oceans or continents, helping to cool the overall climate.
If the melting of the polar ice caps injects great amounts of freshwater into the world's oceans, climate scientists fear that the influx could affect currents enough to drastically change the weather on land
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.
Because ocean currents play a major role in transporting the planet's heat and carbon, the ECCO simulations are being used to understand the ocean's influence on global climate and the melting of ice in polar regions.
«The three areas that can trigger large changes in the earth's gravitational field are oceans, polar and glacial ice and atmosphere,» Cox explains.
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.
A series of robotic missions, from Viking in the 1970s to the Spirit rover still roaming Mars today, have observed ancient riverbeds and polar ice caps storing enough water to submerge the entire planet in an ocean 40 feet deep.
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.
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 Survey.
A young polar bear stands on pack ice over deep waters in the Arctic Ocean in October 2009, during a major research project headed by the University of Wyoming.
The researchers reached that conclusion by capturing more than two dozen polar bears, implanting temperature loggers and tracking their subsequent movements on shore and on ice in the Arctic Ocean's Beaufort Sea, north of Alaska and Canada, during 2008 - 2010.
As sea ice decreases dramatically across polar oceans, some scientists see a silver lining: The algal blooms that seem to thrive where ice has recently disappeared could damper climate change by trapping carbon in the deep ocean.
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.
Earthly life has proved remarkably hardy in similar extreme environments such as hydrothermal vents on the ocean floor and polar ice.
Paradoxically, both phenomena are likely linked: When sea - ice North of Scandinavia and Russia melts, the uncovered ocean releases more warmth into the atmosphere and this can impact the atmosphere up to about 30 kilometers height in the stratosphere disturbing the polar vortex.
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).
In some cases, these were due to a different orbital configuration, or different levels of greenhouse gases, or even different world geography (lower mountain ranges, ocean seaways altered, no polar ice sheets etc).
The new results show that atmospheric water in the near - polar region was enriched by a factor of seven relative to Earth's ocean water, implying that water in Mars» permanent ice caps is enriched by 8-fold.
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.
Dogmatism, toxicology, linear no - dose threshold, LNT, Calabrese, EPA, Watergate II, sea level rise, IPCC, datasets calibrated, Mann, NCEI, GISS, cryosphere, GRACE, mountain glaciers, ocean expansion, polar ice caps, DMI, sun, bias, 2 billion, gamble
The Arctic Ocean's sea ice and waters are habitat for many imperiled species, from polar bears to bowhead whales — and they all face the threat of dirty fossil - fuel development.
Impact of ice melt on storms Freshwater injection onto the North Atlantic and Southern Oceans causes increase of sea level pressure at middle latitudes and decrease at polar latitudes.
A numerical model of interactions between a polar ice stream and the ocean: Application to ice stream E, West Antarctica.
Reports of damaging ocean acidification, accelerating sea - level rise or unprecedented decreases of polar and glacial ice are also mostly myths designed to terrify people into accepting harmful policies that allegedly «save the planet.»
When low - temperature ice covers the Arctic Ocean there is little evaporation or sublimation and the polar regions are quite dry in terms of precipitation, comparable to the amount found in mid-latitude deserts.
Understanding and evaluating sea ice feedbacks is complicated by the strong coupling to polar cloud processes and ocean heat and freshwater transport.
The paper covers so much — polar ice melt, sea level, super storms, ocean mixing.
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.
On the other hand, during those periods between widespread glaciation, the water had melted from the ice sheets and polar areas, flowed, back into the oceans and sea level was as high or higher than now.
[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
Gavin disputes that the main driver of the sea ice retreat is the albedo flip, but we are seeing not only polar amplification of global warming but positive feedback, which would not be explained simply by radiative forces and ocean currents.
«According to a 1972 article in the Christian Science Monitor, Belchen asserted that «a general warming trend over the North Pole is melting the polar ice cap and may produce an ice - free Arctic Ocean by the year 2000 ″»
But what I don't understand is how Unilever is seeking approval of a genetically modified (GM) ice - structuring protein derived from a polar fish, ocean pout, for use in making Breyer's Ice Cream smoother and creamier.ice - structuring protein derived from a polar fish, ocean pout, for use in making Breyer's Ice Cream smoother and creamier.Ice Cream smoother and creamier....
Danny Bloom, a freelance writer, translator and editor living in Taiwan, is on a one - man campaign to get people to seriously consider a worst - case prediction of the British chemist and inventor James Lovelock: life in «polar cities» arrayed around the shores of an ice - free Arctic Ocean in a greenhouse - warmed world.
Some really interesting recent weather events in the High Arctic have shown me the reality of a warmer polar region, snow flakes do not melt in an ocean -1.5 C cold, and ice does not form when its -6 C outside.
The increased temperatures have been accompanied with changes in snow, sea - ice, precipitation, permafrost, icebergs, landice, river runoff, polar lows, synoptic storms, cloudiness, avalanches, ocean circulation, and ocean acidification.
«Borehole temperatures in the ice sheets spanning the last 6000 years show Antarctica repeatedly warming when Greenland cooled, and vice versa... The phenomena has been called the polar see - saw... Attempts to account for it have included the hypothesis of a south - flowing warm ocean current with a built in time lag... There is (however) no significant delay in the Anarctica climate anomaly...
This spring, scientists conducting polar ice and ocean research told me they were unnerved to see a Russian military encampment nearby for the first time.
Excerpt: Livermore CA (SPX) Nov 01, 2005 If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day.
I never foget that scene: polar bears stand on a very small ice float in the open ocean.
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).
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.)
In some cases, these were due to a different orbital configuration, or different levels of greenhouse gases, or even different world geography (lower mountain ranges, ocean seaways altered, no polar ice sheets etc).
When Arctic researchers start investing in floating buoys to study polar ocean dynamics (instead of devices that sit on the sea ice), that's surely a sign of a sea change in conditions and thinking.
I wonder if the cooling earth, the lowering ocean, and the growing polar ice have driven him to desperation; could it be the GISS code about to be cracked?