Sentences with phrase «recent ice melt»

Recent ice melt doubling times are near the lower end of the 10 -40-year range, but the record is too short to confirm the nature of the response» http://pubs.giss.nasa.gov/abs/ha04710s.html

Lindzen dismissed recent ice melt over a short, 30 - year record»

Sea surface temperatures were warm in coast areas, but near - freezing in the open water areas within the ice pack, which is expected given the recent ice melt in that region (Figure 7).

When sceptics look at statistical data, whether it is recent ice melt, deep sea temperatures, current trend in global surface temperatures, troposphere temperatures, ice core records etc. they look at the data as it is without any pre-conceptions and describe what it says.

Meaning that the recent ice melt is likely due to global warming with an additional participant that has not been explored yet.

Latent heat from recent ice melting can't be discounted.

Not exact matches

This magma plume isn't an alternative possible cause of recent upticks in melting along the West Antarctic Ice Sheet attributed to human - generated climate change.

The plume has been a factor in the ice sheet's behavior throughout its history, and recent surges in melting are the result of all the additional heat humans have pumped into it.

While satellite measurements and climate models have detailed this recent ice loss, there are far fewer direct measurements of melt collected from the ice sheet itself.

The cores reveal that the ice layers became thicker and more frequent beginning in the 1990s, with recent melt levels that are unmatched since at least the year 1550 CE.

But recent studies of oxygen isotopes suggest that the level of CO2 was only a tenth of that required to melt the ice.

Recent modelling by researchers from the Potsdam Institute for Climate Impact Research in Germany, as well as studies of past climate, suggest that the planet will soon have warmed enough to melt Greenland's ice sheet entirely — if it hasn't already become warm enough.

Melting sea ice has accelerated warming in the Arctic, which in recent decades has warmed twice as quickly as the global average, according to a new study.

Recent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in recent deRecent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in recent derecent decades.

Dear EarthTalk: Recent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in rRecent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in recentrecent.

A recent study by Robert Kopp at Princeton University (Nature, DOI: 10.1038 / nature08686) suggests sea levels were 8 to 9 metres higher than now during the last interglacial, in part due to the west Antarctic ice sheet melting.

A hundred kilometers wide, this ice sheet, unlike most of its peers, is actually growing instead of melting, because it has slowed its flow toward the sea in recent decades.

It also reviews recent scientific literature on «worst - case» global average sea - level projections and on the potential for rapid ice melt in Greenland and Antarctica.

After all, it is those areas that are closest to the melting point that can tip precipitously — as did Arctic Ocean sea ice in recent years.

At the other end of the world, the recent satellite data show that the rate of melting of Arctic sea ice has accelerated from 2.5 per cent per decade, as shown by the Nimbus data, to 4.3 per cent per decade.

For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surface melting to accelerate.

Some large chunks of ice have broken off Antarctica's ice shelves in recent years, although most researchers don't foresee runaway melting there.

«In recent years Arctic pack ice has formed progressively later, melted earlier, and lost much of its older and thicker multi-year component,» says Anthony Fischbach of the US Geological Survey (USGS) and one of the research team.

In recent years, melting sea ice has allowed more of the Pacific water to flow through the Bering Strait into the Arctic Ocean.

Dr Screen said: «The results of the computer model suggest that melting Arctic sea ice causes a change in the position of the jet stream and this could help to explain the recent wet summers we have seen.

It is likely that several other factors, combined with the impact of melting Arctic sea ice, explain the recent run of wet summers.

Other recent research shows that without the channelized underbelly of the ice shelf and glacier, melting would be even more rapid.

The lake starts to freeze in December and melt in May, although in recent years, as Siberian winters have got colder, ice has been lasting longer on Baikal.

Kopp noted recent findings have revealed the possibility of even more serious impacts including «ice sheet melt in Greenland and Antarctica to compound extremes, where events occurring simultaneously or in rapid sequence can amplify the risks to both human and natural systems.»

Last Friday afternoon, on a conference call hosted by the National Research Council to present a recent report on the Arctic region, Stephanie Pfirman, an environmental science professor at Barnard College, said Arctic ice coverage is shrinking and that thicker sea ice blocks, which anchor much of the landscape, are rapidly melting.

Signs of repeated ice - and snow - melt in a mid-latitude gully may point to the most recent water activity on the Red Planet's surface

The IPCC has taken a crack at that, identifying 26 «key vulnerabilities» in its most recent assessment, ranging from declines in agricultural productivity to the melting of ice sheets and polar ice cover as well as determining how to judge if they are spiraling out of control.

Recent projections show that for even the lowest emissions scenarios, thermal expansion of ocean waters21 and the melting of small mountain glaciers22 will result in 11 inches of sea level rise by 2100, even without any contribution from the ice sheets in Greenland and Antarctica.

Indeed, one of the findings in the recent paper by Overpeck et al. (this weeks Science), is that even as the Greenland ice sheet melts faster than originally expected, it still won't provide sufficient meltwater forcing of the North Atlantic circulation (which is the feature of the climate system most commonly implicated in the discussion of «tipping points») to force any sort of threshold change.

Relevant to this issue, there is currently a debate among paleoclimatologists with respect to the following condundrum: A dramatic recession of the more - than - 11,000 year old ice cap of Mt. Kilimanjaro in tropical East Africa is taking place despite any clear evidence that temperatures have exceeded the melting threshold (one explanation is that the changes are largely associated with a drying atmosphere in the region; the most recent evidence, however, seems to indicate that melting may indeed now be underway).

The Greenland ice sheet (GIS) has been melting so slowly and so negligibly in recent decades that the entire ice sheet's total contribution to global sea level rise was a mere 0.39 of a centimeter (0.17 to 0.61 cm) between 1993 and 2010 (Leeson et al, 2017).

The European Alps have been growing since the end of the last little Ice Age in 1850 when glaciers began shrinking as temperatures warmed, but the rate of uplift has accelerated in recent decades because global warming has sped up the rate of glacier melt, the researchers say.

This post should get you started about expectations with regard to melting on human timescales: http://www.realclimate.org/index.php/archives/2008/09/on-straw-men-and-greenland-tad-pfeffer-responds/ You may also be interested in an article about a recent publication looking at CO2 and ice sheets on a geological timescale: http://www.sciencedaily.com/releases/2011/12/111201174225.htm

A recent analysis of ice shelves across Antarctica has shown that basal melt rates are around 1325 ± 235 gigatonnes per year, with an additional calving flux of 1089 ± 139 gigatonnes per year.

Recent summers on the vast, white expanse of the Greenland ice sheet have featured some spectacular ice melt, including an alarming period in 2012 when nearly the whole surface showed signs of melt.

In recent years, biologists have observed that the bears are swimming now more than ever as melting stretches the distances between Arctic ice flows.

In conclusion, the data presented here collectively suggest that recent decreases in western Arctic Ocean Ωa can be predominantly attributed to recent melting of multiyear sea ice and the associated seawater freshening and uptake of atmospheric CO2; biogeochemical processes exert an additional influence.

With recent snow and ice, we were prepared for the cold... but I was less prepared for warmer temps melting everything into a muddy mess.

Billing itself as the northernmost city in the world, this small Arctic city has witnessed a recent explosion of growth and tourism thanks to melting ice and the resulting increase of maritime accessibility.

A recent national survey shows that 60 % of American households use rock salt and salt - based ice melt products during the cold winter months.

Today the river is in full flow due to ice - melt and some recent heavy rain in the San Juan all of which promises to add to the splendour of this railroad journey which, from the very beginning was promoted as a scenic route for passenger service even though the line was constructed primarily to haul gold and silver mine ores from the San Juan Mountains.

Indeed, one of the findings in the recent paper by Overpeck et al. (this weeks Science), is that even as the Greenland ice sheet melts faster than originally expected, it still won't provide sufficient meltwater forcing of the North Atlantic circulation (which is the feature of the climate system most commonly implicated in the discussion of «tipping points») to force any sort of threshold change.

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 years.

The recent spate of stories on Antarctic ice shelf melting is a good example.

He points out that this is just what happened in the 1920s and 1930s, when the ice melted even more dramatically than it has done in recent years, before it recovered again during the decades of what is called «the Little Cooling».