Sentences with phrase «less sea ice in»

For several thousand years, there was much less sea ice in the Arctic Ocean — probably less than half of current amounts....

Less sea ice in autumn means more snowfall on the continents, which can have a larger impact on on albedo.

The only other year on record that saw less sea ice in April was 2016.

During the so - called Holocene Climate Optimum, from approximately 8000 to 5000 years ago, when the temperatures were somewhat warmer than today, there was significantly less sea ice in the Arctic Ocean, probably less than 50 % of the summer 2007 coverage, which is absolutely lowest on record.

Even as the long - term trend in the Arctic is toward less sea ice in summers, for decades to come — and routinely in other seasons — any nation with interests in the far north will need to be able to navigate in heavy ice.

Less sea ice in summer means the Arctic Ocean warms more.

Not exact matches

Polyakov says a positive feedback loop is underway, in which less summer sea ice will lead to warmer winter waters and even less summer ice in subsequent years.

Thawing permafrost may mean more CO2 in the atmosphere but less sea ice may mean more carbon captured by the Arctic ocean

For example, Kangerdlugssuaq glacier has lost mass from melting and, in its thinner form, has less weight to speed the flow of its ice toward the sea.

As the Arctic summers are getting warmer we may see an acceleration of global warming, because reduced sea ice in the Arctic will remove less CO2 from the atmosphere, Danish scientists report.

In the hot spots of the Amundsen and Bellinghausen seas, the ice shelves lost 18 % of their thickness in less than 20 yearIn the hot spots of the Amundsen and Bellinghausen seas, the ice shelves lost 18 % of their thickness in less than 20 yearin less than 20 years.

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.

In addition, now that sea ice blankets the Southern Ocean off the western Antarctic Peninsula far less than before, more water is evaporating and forming precipitation, largely in the form of snoIn addition, now that sea ice blankets the Southern Ocean off the western Antarctic Peninsula far less than before, more water is evaporating and forming precipitation, largely in the form of snoin the form of snow.

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.

In some years — including the past two — an icebreaker passing through the Ross Sea and into McMurdo Sound encounters primarily «first - year ice,» which is less stiff than multiyear ice and easier for icebreakers to clear.

In a study published in the actual volume of Nature Communications, geo - and climate researchers at the Alfred - Wegener Institute, Helmholtz Centre for Polar - and Marine Research (AWI) show that, in the course of our planet's history, summertime sea ice was to be found in the central Arctic in periods characterised by higher global temperatures — but less CO2 — than todaIn a study published in the actual volume of Nature Communications, geo - and climate researchers at the Alfred - Wegener Institute, Helmholtz Centre for Polar - and Marine Research (AWI) show that, in the course of our planet's history, summertime sea ice was to be found in the central Arctic in periods characterised by higher global temperatures — but less CO2 — than todain the actual volume of Nature Communications, geo - and climate researchers at the Alfred - Wegener Institute, Helmholtz Centre for Polar - and Marine Research (AWI) show that, in the course of our planet's history, summertime sea ice was to be found in the central Arctic in periods characterised by higher global temperatures — but less CO2 — than todain the course of our planet's history, summertime sea ice was to be found in the central Arctic in periods characterised by higher global temperatures — but less CO2 — than todain the central Arctic in periods characterised by higher global temperatures — but less CO2 — than todain periods characterised by higher global temperatures — but less CO2 — than today.

The East Antarctic ice sheet has long been considered relatively stable because most of the ice sheet was thought to rest on bedrock above sea level, making it less susceptible to changes in climate.

What will happen to the sea ice in Antarctica over the next few years is less clear.

The recent string of record - low winter maximums could be a sign that the large summer losses are starting to show up more in other seasons, with an increasingly delayed fall freeze - up that leaves less time for sea ice to accumulate in winter, Julienne Stroeve, an NSIDC scientist and University College London professor, previously said.

In September 2007 less sea ice covered the Arctic than at any point since the U.S. government began keeping records of its decline.

First of all, less sea ice is forming in the region, and secondly, oceanographic recordings from the continental shelf break confirm that the warm water masses are already moving closer and closer to the ice shelf in pulses,» says Dr Hartmut Hellmer, an oceanographer at the AWI and first author of the study.

Less ice than in 2016 was recorded in the Chukchi and East Siberian Seas.

During the later period, when there was less sea ice, the whales dove significantly longer and deeper than in the earlier period — presumably in search of prey as the animals, in turn, changed their habits because of different ocean conditions brought on by sea ice loss.

It's also possible that feeding opportunities are actually better for belugas in an ocean with less sea ice.

He said that sensitivity includes water vapour and arctic sea ice, but I suspect that the changes in sea ice in the models are much less than we are seeing in practice.

If proxy data can confirm that sea ice was indeed the major player in past abrupt climate - change events, it seems less likely that such dramatic abrupt changes will occur due to global warming, when extensive sea - ice cover will not be present.

Interestingly, the Antarctic Peninsula supports extremely high krill biomass and predator densities in a region that experiences less sea ice than colder, adjacent regions of the Antarctic [6].

And in fact this is self reinforcing (less sea ice, warmer water, rising air, lower pressure, enhanced storminess).

That is a major change in sea currents, warming, wildlife, coastal erosion, and much less solar energy being bounced back into space by ice that in not there.

The global mean temperature rise of less than 1 degree C in the past century does not seem like much, but it is associated with a winter temperature rise of 3 to 4 degrees C over most of the Arctic in the past 20 years, unprecedented loss of ice from all the tropical glaciers, a decrease of 15 to 20 % in late summer sea ice extent, rising sealevel, and a host of other measured signs of anomalous and rapid climate change.

The accelerating melting of land ice into the sea makes the surface of the ocean around Antarctica colder, less salty and more easily frozen, leading to extensive sea ice in some areas.

In his seminal 1982 book Climate, History, and the Modern World, the renown climatologist Dr. H.H. Lamb revealed that sea ice in the subarctic and Arctic regions was much less extensive during the Medieval Warm Period (9th - 13th centuries) compared to todaIn his seminal 1982 book Climate, History, and the Modern World, the renown climatologist Dr. H.H. Lamb revealed that sea ice in the subarctic and Arctic regions was much less extensive during the Medieval Warm Period (9th - 13th centuries) compared to todain the subarctic and Arctic regions was much less extensive during the Medieval Warm Period (9th - 13th centuries) compared to today.

The findings suggest that while the response of Antarctic summer sea ice to human - caused climate change may be less dramatic than in the Arctic, sea ice cover may have declined by as much as 14 % over the last 100 years.

Summertime sea ice in the Arctic Ocean now routinely covers about 40 percent less area than it did in the late 1970s, when continuous satellite observations began.

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This left less water in the oceans since large amounts were tied up in glaciers and ice sheets, and sea level fell.

Increased melting of sea ice did occur in the 1920s and 1930s in the Barents Sea (Ifft, Monthly Weather Review, November, 1922, p. 589) and over the Arctic Basin (Ahlmann, 1949, Rapports et Proces - Verbaux des Revions du Conseil International pour l'Exploration de la Mer 125, 9 - 16) but it was much less so than in recent yeasea ice did occur in the 1920s and 1930s in the Barents Sea (Ifft, Monthly Weather Review, November, 1922, p. 589) and over the Arctic Basin (Ahlmann, 1949, Rapports et Proces - Verbaux des Revions du Conseil International pour l'Exploration de la Mer 125, 9 - 16) but it was much less so than in recent yeaSea (Ifft, Monthly Weather Review, November, 1922, p. 589) and over the Arctic Basin (Ahlmann, 1949, Rapports et Proces - Verbaux des Revions du Conseil International pour l'Exploration de la Mer 125, 9 - 16) but it was much less so than in recent years.

If proxy data can confirm that sea ice was indeed the major player in past abrupt climate - change events, it seems less likely that such dramatic abrupt changes will occur due to global warming, when extensive sea - ice cover will not be present.

Its simple, winter was much smaller in extent, mimicking directly the lesser volume of Arctic sea ice.

Sea ice in the Arctic, on which arctic animals hunt, rest, and reproduce, now covers 15 % less area than it did in 1978; it has thinned to an average of 1.8 meters, compared to 3.1 meters in the 1950s.

I have observed greater variations in Arctic Inversions lately, the tendency is towards less steep inversions, this is expected when the Arctic lower atmosphere warms during winter, if the models maintain a stronger inversion while its observed weakening this may explain why sea ice models fail, strong boundary layers appear to be collapsing.

A bit less ice in the Chukchi Sea but, otherwise, very similar to 1938.

Or that the current deep freeze in europe is caused by less sea ice etc..

There have been substantial, sometimes rancorous, debates among polar bear researchers about this predator's prospects in a warming climate with less summer sea ice.

There is no evidence for that now, or in the recent past when Arctic sea ice was less extensive (specifically the Early Holocene or the Eemian).

Long term trends in all seasons are towards less Arctic sea ice.

My take is that the tug of war over what's causing today's telegenic heat waves, floods, tempests — and even Arctic sea - ice retreats — distracts from the high confidence scientists have in the long - term (but less sexy) picture: that more CO2 will lead to centuries of climate and coastal changes with big consequences for a growing human population (for better and worse in the short run, and likely mostly for the worse in the long run).

I've been criticized by some environmentalists in recent years for writing that the long - term picture (more CO2 = warmer world = less ice = higher seas and lots of climatic and ecological changes) is the only aspect of human - caused global warming that is solidly established, and that efforts to link dramatic weather - related events to the human influence on climate could backfire should nature wiggle the other way for awhile.

Results showed the storm caused the sea ice to pass the previous record 10 days earlier in August than it would have otherwise, but only reduced the final September ice extent by 150,000 square kilometers (almost 60,000 square miles), less than a 5 percent difference.

The established icons of Arctic climate change are the polar bear and, to a lesser extent, those indigenous communities that are trying to maintain traditional ways in the face of slushy floes and the relentless erosion of coasts exposed to waves as sea ice retreats.