Sentences with phrase «increases polar sea»

The cooling increases polar sea level pressure pushing the storms circling the pole into higher latitudes.

Not exact matches

Sea ice - associated decline in body condition leads to increased concentrations of lipophilic pollutants in polar bears (Ursus maritimus) from Svalbard, Norway.

Collectively these studies, which have included green sea turtles, polar bears and monkeys, bring weight to the «hygiene hypothesis,» which theorizes that reduced exposure to microbes is contributing to the increase in autoimmune and allergic disease occurrence in Westernized nations.

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.

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 paper ties it all together and shows a very clear relationship between the disappearance of sea ice and increasing predation intensity on seabirds,» says Andrew Derocher, a polar bear specialist and Arctic ecologist at the University of Alberta in Edmonton, Canada.

Thinner sea ice is getting pushed farther by Arctic winds, which makes polar bears walk more to stay in the same place, increasing their need for food.

The paper draws a convincing connection between the intensification of the Amundsen Sea low - pressure system and increasing snow accumulation, said David Bromwich, a polar weather and climate scientist with the Byrd Polar and Climate Research Center at Ohio State University in Columbus, who was not an author on the new paper.

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.

When the model held the polar winds at a constant level, the sea ice increased only 20 percent as much.

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).

Freshwater injection into the North Atlantic and Southern oceans increases sea level pressure at middle latitudes and decreases it at polar latitudes (Figs. 20, S22), but the impact is different in the North Atlantic than in the Southern Ocean.

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.

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 world..

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.

Although again I challenge you to name even five polar scientists who do not think human - caused global warming is the dominant cause of «the increasing summer retreats of sea ice.»

Here are some possible choices — in order of increasing sophistication: * All (or most) scientists agree (the principal Gore argument) * The 20th century is the warmest in 1000 years (the «hockeystick» argument) * Glaciers are melting, sea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing * Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years agsea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing * Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years agSea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years agree

And may I add looks remarkably similar to the idealized deformation of the polar vortex under scenarios with Arctic warming, low Arctic sea ice and increased Siberian snow cover presented in my recent review paper with Jennifer Francis [of Rutgers University].

Even with the increasing summer retreats of sea ice, which polar scientists say probably are being driven in large part by global warming caused by humans....

When the polar regions cool the amount of sea ice increases.

There are several things that are well proven and simple to understand — for example, global termperature increase, sea level rise, polar ice cover, glacier retreat, and snow cover.

The findings reinforce suggestions that strong positive ice — temperature feedbacks have emerged in the Arctic15, increasing the chances of further rapid warming and sea ice loss, and will probably affect polar ecosystems, ice - sheet mass balance and human activities in the Arctic...» *** This is the heart of polar amplification and has very little to do with your stated defintion of amplifying the effects of warming going on at lower latitudes.

Increasing loss of Arctic sea ice is cutting back the platform of life on which all polar bears rely for successful feeding and breeding.

(09/01/2011) Recent, unprecedented walrus haul - outs and increased instances of long - distance swims by polar bears show the direct impacts on wildlife of dwindling Arctic sea ice from climate change.

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An increasing number of polar bears are encroaching on local communities and lengthening their stays because of melting sea ice.

Substantial weakening of the polar cell due to increase in sea - level pressure over polar latitudes leads to a negative trend of the winter AO index.

In order to response needs of increase polar activities, we propose to focus on detection of sea ice extremes and automatic production of «sea ice warnings» products.

Among all the statistics about temperature increase, polar melting and sea level rise associated with a warming world, the impact on hundreds of millions of people forced to leave their homes due to climate change is often not fully considered.

Numerous recent studies based on both observations and model simulations indicate that reduced Barents - Kara sea ice in late fall favors a strengthened and northwestward expansion of the Siberian high, increased poleward heat flux, weakened polar vortex, and ultimately a negative AO.

Increasing greenhouse gases should, by simple physics, strengthen the polar vortex, but what favors weakening is the loss of sea ice and more snow cover in Eurasia, Those work together to force this weakening of the polar vortex that we're seeing.»

Some mechanisms for that are hypothesized, e.g. methane release from polar regions, increased melting of Greenland leading to stopping the Gulf Stream, rapid reduction of Arctic sea - ice and its positive feedback, collapse of Antarctic ice shelves, loss of the Amazon, large volcanoes, asteroid impacts, unexpected solar variation.

Despite Center for Biological Diversity assertions that «Arctic sea ice melt is a disaster for the polar bears», research shows polar bear populations have continued to thrive and increase.

Tagged Davis Strait, expert, harp seals, Labrador, Newfoundland, onshore, polar bears, population increase, sea ice, sightings

Thus, the concept of increasing CO2 is causing increasing sea level rise from polar ice melt embodies two assumptions that need to be established with physical evidence: 1) the extent to which increased CO2 will cause increased temperatures, assumptions or models do not suffice; and 2) the extent to which increased temperatures will cause Antarctic ice melt.

Tagged Black Tickle, Charlottetown, climate change, Davis Strait, encounters, facts, Labrador, Newfoundland, Perry Trimper, polar bears, population increase, range contraction, sea ice, sightings

Oceans get warm and polar sea ice thaws and snowfall increases to rebuild ice on Greenland and the Mountain Glaciers.

Hysterical global warming alarmists keep claiming that polar sea ice melt is due to increasing human CO2 emissions.

So an increased GHG effect should manifest in the polar regions in a decrease in winter sea ice extent and a smaller increase in summer sea ice extent relative to the winter maximum extent (ie a smaller annual range in sea ice extent).

Greenhouse gas mitigation can reduce sea - ice loss and increase polar bear persistence.

(5) Global warming, the climate change component that is driven by greenhouse gas increases, is the reason for concern because of its increasing impact on ecosystems and polar ice caps / sea level rise.

... observations suggested the bears drowned in rough seas and high winds and «suggest that drowning - related deaths of polar bears may increase in the future if the observed trend of regression of pack ice and / or longer open water periods continues.»

Abstract Increased land use by polar bears (Ursus maritimus) due to climate - change - induced reduction of their sea - ice habitat illustrates the impact of climate change on species distributions and the difficulty of conserving a large, highly specialized carnivore in the face of this global threat.

The reduction in Arctic sea ice and increase in Antarctic sea ice has happened before and is called the polar see - saw or polar anomaly.

The increase in relative humidity is due to warmer surface sea temperatures allowing greater evaporation and warmer polar conditions causing less condensation.

Polar bears are one of the most sensitive Arctic marine mammals to climate warming because they spend most of their lives on sea ice.35 Declining sea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice.35 Declining sea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionSea region.45

For example, reductions in seasonal sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.134

Due to hypotheses regards future effects of increasing CO2 on sea ice and polar bear health, CBD argued polar bears were endangered.

Population increase of polar bears on Svalbard and decrease in sea - ice cover in the Arctic region during summer probably results in more frequent interactions with reindeer on the archipelago.