Sentences with phrase «causing loss of sea ice»
The U.S. Department of the Interior announced on December 27 that it is proposing formally to list the polar bear as «threatened» with extinction, because rising Arctic temperature is causing the loss of sea ice, on which polar bears depend... Continue reading →
http://www.climatesciencewatch.org/ Not exact matches
In some parts of the Arctic, sea ice loss is causing polar bears to spend longer periods on shore each summer.
«You can't go as far as saying the loss of sea ice is causing cold weather in Florida,» said Overland.
«Warming greater than 2 degrees Celsius above 19th - century levels is projected to be disruptive, reducing global agricultural productivity, causing widespread loss of biodiversity and — if sustained over centuries — melting much of the Greenland ice sheet with ensuing rise in sea levels of several meters,» the AGU declares in its first statement in four years on «Human Impacts on Climate.»
«This research indicates that although sea - ice loss does intensify the negative NAO, bringing more days of cold easterly winds, it also causes those same winds to be warmer than they used to be.
Antarctica contains more than 90 % of the world's ice, and the loss of any significant part of it would cause a substantial sea level rise.
The loss of Arctic sea ice caused by climate warming is having world - wide effects on shipping, fishing, and human life.
Total loss of the Arctic sea ice, caused by increasing CO2, will be catastrophic.
Much of the recent sea ice loss is attributed to warmer sea surface temperatures with southerly wind anomalies a contributing cause [Francis and Hunter, 2007; Sorteberg and Kvingedal, 2006], with thermodynamic coupling leading to associated increases in atmospheric moisture.»
I provided the link to suggest the opposite: permanent loss of Arctic sea ice may well cause a drastic decline in biodiversity.
A typo in mine at # 25 is where 40,000 m3 should read 400,000 m3, and an addendum is the reference for the forcing from the Albedo Loss feedback shown in the satellite record: «Observational determination of albedo decrease caused by vanishing Arctic sea ice» See: http://eisenman.ucsd.edu/publications/Pistone-Eisenman-Ramanathan-2014.pdf
Another new aspect is the importance of the increasing mass loss of the Greenland ice sheet, which causes extra freshwater to enter the North Atlantic that dilutes the sea water.
No kilometers of ice shaved off to cause rebound, although there does appear to have been a fair amount of sea ice loss earlier in the twentieth century, principally prior to 1975.
Alarmed at the pace of change to our Earth caused by human - induced climate change, including accelerating melting and loss of ice from Greenland, the Himalayas and Antarctica, acidification of the world's oceans due to rising CO2 concentrations, increasingly intense tropical cyclones, more damaging and intense drought and floods, including glacial lakes outburst loods, in many regions and higher levels of sea - level rise than estimated just a few years ago, risks changing the face of the planet and threatening coastal cities, low lying areas, mountainous regions and vulnerable countries the world over,
The problem I have with the original post (yes intermediate) is what study was used to make the leap that despite sea ice gains the thermal energy of the warming oceans make its way through the ice (which is an insulator) and causing land ice loss.
Models created by experts said such a dramatic loss of sea ice would cause a sharp drop in the polar bear population and threaten their very survival.
The warming of approximately 0.1 — 0.2 °C per decade that has resulted is very likely the primary cause of the increasing loss of snow cover and Arctic sea ice, of more frequent occurrence of very heavy precipitation, of rising sea level, and of shifts in the natural ranges of plants and animals.
Ainley believed the DuDu colony had been unable to recover since 1980 because global warming had caused a thinning of the sea ice resulting in a premature loss of sea ice that was drowning chicks.
Sea ice is lost due to increasing ocean heat transport into the arctic and the resulting loss of ice causes the atmosphere to warm.
«Compared to the Arctic, global warming causes only weak Antarctic sea ice loss, which is why the IPO can have such a striking effect in the Antarctic,» explained study's co-author Cecilia Bitz from University of Washington in a statement.
But in the meantime, while we are still uncertain that AGW is causing the warming and Arctic sea ice loss, let's do more work to reduce uncertainties, but hold off on any costly mitigation actions that may be a total waste of resources and effort.
The latest published research suggests that «ice shelves may have an important role in stabilizing the ice sheet in Antarctica, and imply that the future loss of the largest ice shelves in the Antarctic could eventually cause accelerated and dramatic sea level rise,» Rapley said.
The vulnerable nations declared that they are, «Alarmed at the pace of change to our Earth caused by human - induced climate change, including accelerating melting and loss of ice from Greenland, the Himalayas and Antarctica, acidification of the world's oceans due to rising CO2 concentrations, increasingly intense tropical cyclones, more damaging and intense drought and floods, including Glacial Lakes Outburst Floods, in many regions and higher levels of sea - level rise than estimated just a few years ago, risks changing the face of the planet and threatening coastal cities, low lying areas, mountainous regions and vulnerable countries the world over...»
With regard to Dr Tobis» observation that: «there's a something on the order of a 10 % chance that we may have already passed the 2 C mark by any reasonable definition» the evidence of a study of Albedo Loss published last January appears to put the issue beyond doubt: «Observational determination of albedo decrease caused by vanishing Arctic sea ice» (Kristina Pistone, Ian Eisenman, and V. Ramanathan)
Nor did the BRT discuss research detailing how the loss of sea ice in the 1990s was not caused by warmer air, but by a shift in the Arctic Oscillation resulting in below - freezing winds that pushed thick insulating ice out into the Atlantic.
Furthermore, researchers show the loss of sea ice reconnects the oceans with the winds causing a stirring effect that brings warmer water to the surface.
And despite being Antarctica's most poleward coastline, there has been a great loss of glacier ice around the Amundsen Sea, illustrated by redder tones, causing a net loss of ice for the continent.48
Results show that the globally and annually averaged radiative forcing caused by the observed loss of sea ice in the Arctic between 1979 and 2007 is approximately 0.1 W m − 2; a complete removal of Arctic sea ice results in a forcing of about 0.7 W m − 2, while a more realistic ice - free - summer scenario (no ice for one month, decreased ice at all other times of the year) results in a forcing of about 0.3 W m − 2, similar to present - day anthropogenic forcing caused by halocarbons.
The loss of the normal ocean circulation could cause drastic shifts in weather patterns, and continued loss of ice in Greenland will lead to the continued rise in sea level, threatening coastal cities around the globe.
In recent decades, much research on these topics has raised the questions of «tipping points» and «system flips,» where feedbacks in the system compound to rapidly cause massive reorganization of global climate over very short periods of time — a truncation or reorganization of the thermohaline circulation or of food web structures, for instance, caused by the loss of sea ice or warming ocean temperatures.
«For every foot of global sea - level rise caused by the loss of ice on West Antarctica, sea - level will rise approximately 1.25 feet along the California coast.»
He found that prescribed sea ice loss in the model caused a southward shift of the summer jet stream and increased northern European precipitation.
This is new and very big picture stuff, relating the loss of sea ice to the stalled weather patterns we've seen this summer and causing so much misery.
Instead, natural variations in the climate system and other external forcing factors (such as volcanic eruptions) will likely cause the rate of Arctic sea ice change to vary considerably from decade to decade, and perhaps even temporarily switch from negative (sea ice loss) to positive (sea ice growth).
The team believes the ancient tropical warming caused large, rapid atmospheric changes at the equator, the intensification of the Pacific monsoon, sea - ice loss in the north Atlantic Ocean and more atmospheric heat and moisture over Greenland and much of the rest of the Northern Hemisphere.
Viable avenues for improving the information base include determining the primary causes of variation among different climate models and determining which climate models exhibit the best ability to reproduce the observed rate of sea ice loss.
For example, if ice sheet mass loss becomes rapid, it is conceivable that the cold fresh water added to the ocean could cause regional surface cooling [199], perhaps even at a point when sea level rise has only reached a level of the order of a meter [200].
Fluctuations in the mass of the Greenland and Antarctic ice sheets are of considerable societal importance as they impact directly on global sea levels: since 1901, ice losses from Antarctica and Greenland, alongside the melting of small glaciers and ice caps and thermal expansion of the oceans, have caused global sea levels to rise at an average rate of 1.7 mm / yr.
To summarise the arguments presented so far concerning ice - loss in the arctic basin, at least four mechanisms must be recognised: (i) a momentum - induced slowing of winter ice formation, (ii) upward heat - flux from anomalously warm Atlantic water through the surface low ‐ salinity layer below the ice, (iii) wind patterns that cause the export of anomalous amounts of drift ice through the Fram Straits and disperse pack - ice in the western basin and (iv) the anomalous flux of warm Bering Sea water into the eastern Arctic of the mid 1990s.
Research into natural causes of summer loss of Arctic sea ice reveals human responsibility for drastic changes to the region's ecology.
«We are not implying some kind of recovery from the effects of human - caused global warming; it's really just a slowdown in winter sea ice loss.»
I assume this lack of awareness was due to a lack of data on large sea ice loss seasons and lack of extreme events caused by blocking.
Record - breaking losses of Arctic sea ice mean that instead of being covered with reflective white ice, the darker ocean water is exposed and can store heat energy, reducing the temperature gradient and causing a feedback loop that ends up melting more ice.
President of the National Academy of Sciences Ralph Cicerone says rising sea levels — and the loss of ice from polar regions — are at least partially caused by human activities.
That growth of sea ice could have potentially been caused by the influx of freshwater as glaciers on land melted, or from changes in the winds that whip around the continent (changes that could be linked to warming or the loss of ozone high in the atmosphere).
Recent sea ice loss is thus largely caused by an increasing «Atlantification» of the Barents Sea.&raqsea ice loss is thus largely caused by an increasing «Atlantification» of the Barents Sea.&raqSea.»
In other words, if it continues, the recent trend in sea ice loss may triple overall Arctic warming, causing large emissions in carbon dioxide and methane from the tundra this century (for a review of recent literature on the tundra, see «Science stunner: Vast East Siberian Arctic Shelf methane stores destabilizing and venting; NSF issues world a wake - up call: «Release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming»).
Josh Willis, a lead NASA scientist for the Jason missions, which measure sea level rise from space and Ocean's Melting Greenland (OMG), is a passionate communicator about human - caused global warming.Come listen to a talk on what his team has found out about the role of the oceans in ice loss around the margins of the Greenland Ice Sheice loss around the margins of the Greenland Ice SheIce Sheet.
Climate Scientists Recant Only 50 % Of Recent Arctic Warming & Sea Ice Loss Is Human - Caused Image Source: Climate4you The Arctic region was the largest contributor to the positive slope in global temperatures in recent decades.
«There's emerging evidence that the warming in the Arctic related to the loss of sea ice [as well as atmospheric warming] is causing a loopier, kinkier jet stream,» says Meier.