Sentences with phrase «of accelerated melt»

Since then, the glaciers have gradually withdrawn, with one period of accelerated melt in the late 1800s and a second, much larger, accelerated melt period in the past three decades.

Since the 1970s, the glaciers have followed a pattern of periods of accelerated melt with two to three years in between of slower retreat and occasional advance (or growth).

Now, scientists can trace the beginning of this accelerated melting to a surge of warming in the Pacific Ocean more than 70 years ago.

That melt might spur even more algal growth, starting a feedback loop of accelerated melting, scientists have proposed.

May be, this has been done to give consistence to the myths of the accelerated melting (or calving) of the Greenland ice cap [31] or of Antarctica and of a noticeable thermal expansion of the depth of the ocean.

Two things that Professor Ian Plimer confidently touted during his presentation at the SA Skeptics annual conference was (1) the relevance of David Evan's so - called missing tropical hotspot (as supposed proof against greenhouse theory) and (2) that sub-sea volcanoes along the Gakkel Ridge is likely to be the cause of accelerated melting of the Arctic summer sea ice.

Not exact matches

Rising temperatures will warm the oceans and accelerate melting of land ice, affecting sea - levels along the California coast.

Teaming up with GINgroup, an established franchise partner that not only has the experience and infrastructure, but also shares our corporate values and principles, will help us to further grow and accelerate the development of The Melting Pot brand throughout the country.»

«Such warming could cause accelerated melting of glacial ice and a consequent increase in the sea level of several feet over the next century,» she told a meeting of the UK's Royal Society.

In addition to such ice changes — accelerated melting in Greenland, western Antarctica and from mountain glaciers throughout the world — scientists have improved their understanding of the atmosphere's workings.

«We see that west Greenland melt really started accelerating about twenty years ago,» said Erich Osterberg, assistant professor of earth sciences at Dartmouth and the lead scientist on the project.

For example, heat waves were particularly severe, droughts were extensive in tropical forests, and melting of the Greenland ice sheet accelerated in association with shifts in the 8 - day maximum temperature.

More than 80 % of the ice on Africa's highest peak has melted since the early 20th century, joining other glaciers that are ebbing from the world's tropical mountains at an accelerating rate.

As the melting of the Arctic sea ice accelerates, countries with claims on Arctic Circle territory — including not just Russia and Canada but also the United States, Denmark, Norway, Sweden, Iceland, and Finland — are scrambling to send mapping expeditions to the icy North.

They suspect melting of mountain glaciers may accelerate faster than melting of sea level glaciers as the Arctic continues to warm.

The study also suggests that the accelerated melting of mountain glaciers in recent decades may explain a phenomenon that has long puzzled scientists — why Arctic and sub-Arctic rivers have increased their water flow during the winter even without a correlative increase in rain or snowfall.

The blooming leads to a runaway effect: The more glaciers and snow fields thaw the more algae bloom which in turn results in a darkening of the surface which again accelerates melting.

«Cosmopolitan snow algae accelerate the melting of Arctic glaciers.»

Vitale belonged to an undergraduate senior project team in the Department of Biomedical Engineering and Mechanics that designed, constructed, and tested the Melt Mat, which accelerates snow melting times by threefold.

In recent years, the flow of these glaciers into the ocean has largely accelerated (red), which exacerbates melting.

Melting of significant portions of Arctic permafrost could accelerate climate change into a catastrophe

Glacial collapse is unprecedented in western Tibet, which for decades has resisted the effects of climate change while glaciers in southern and eastern Tibet have melted at an accelerating rate.

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.

Using sediment gathered from the ocean floor in different areas of the world, the researchers were able to confirm that as the ice sheets started melting and the climate warmed up at the end of the last ice age, 18,000 years ago, the marine nitrogen cycle started to accelerate.

The melt rates are comparable with the Arctic, where accelerated melting of permafrost has become a regularly recurring phenomenon, and the change could offer a preview of melting permafrost in other parts of a warming Antarctic continent.

The United States has released an ambitious, climate - and conservation - focused agenda for its 2 - year chairmanship that includes pushing for more research on black carbon, which accelerates melting in the region, and on emissions of the potent greenhouse gas methane from the seabed and permafrost, as well as creating a network of marine protected areas in the Arctic and equipping Arctic villages with renewable energy sources.

Dr Jourdain said it may help explain why the melt rate of some of the glaciers in that region are accelerating more than scientists expected.

A possible cause for the accelerated Arctic warming is the melting of the region's sea ice, which reduces the icy, bright area that can reflect sunlight back out into space, resulting in more solar radiation being absorbed by the dark Arctic waters.

Also at the AGU meeting, Yasunari's co-author and Goddard colleague William Lau presented the results of a separate study today suggesting that soot heating the atmosphere over India could accelerate the glacier - melting effects of the warm currents that rise up to the Himalayan chain, in a «heat pump» effect.

«If ice caps and glaciers were to continue to crack and break into pieces, [the amount of] their surface area that is exposed to air would be significantly increased, which could lead to accelerated melting and much - reduced coverage area on the Earth,» Buehler said in a statement.

«Since not all species respond equally strongly, [the accelerated snow melt] may cause interacting species to get out of synchrony, leaving consumers with more limited resources,» Høye says.

The degradation of the historically stable Filchner - Ronne Ice Shelf would upset ice on land, triggering runaway melting over a vast region of the continent and accelerating global sea level rise.

For plenty of reasons it could happen much more quickly — recent observations suggest that the melting has not only exceeded what models predict, but has also begun to accelerate.

This shift strengthens the ocean currents that bring warm, salty water to the surface, where it accelerates the melting of Antarctic ice.

Lenton argues that an accelerated melting of Greenland would throw more freshwater on the northern Atlantic than these reassuring calculations have taken into account.

Changes come even with lower warming What was most surprising, Diffenbaugh said, is that the accelerated melting of the snowpack would occur even if the world were able to limit warming to the target of a 2 - degree - Celsius increase agreed upon in international climate negotiations in Copenhagen, Denmark.

Scientists have found that the Totten Glacier, a keystone to East Antarctica's ice sheets and the more than 3 meters of water they hold, is susceptible to two troughs of warm water that could be accelerating its melting from underneath.

«This acceleration, driven mainly by accelerated melting in Greenland and Antarctica, has the potential to double the total sea level rise by 2100 as compared to projections that assume a constant rate — to more than 60 cm instead of about 30.»

Since so much of the ice sheet is grounded underwater, rising sea levels may have the effect of lifting the sheets, allowing more - and increasingly warmer - water underneath it, leading to further bottom melting, more ice shelf disintegration, accelerated glacial flow, and further sea level rise, and so on and on, another vicious cycle.

These new measurements confirm what some of the more pessimistic scientists thought: The melting along the crucial edges of the two major ice sheets is accelerating and is in a self - feeding loop.

The process seems to be accelerating all across the world, though, and it seems about as robust a prediction as that of rapid polar melting.

That is not true of Greenland or Iceland where the melting of glaciers is accelerating, and it will be interesting to see whether they experience more volcanicity, especially Iceland.

The melting of the Greenland ice sheet trigger accelerated sea level rise, a die back of the Amazon rainforest removes a crucial atmospheric carbon sink, and an alteration of the ocean conveyor belt shuts down the Atlantic Gulf stream.

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.

Melt electrospun calcium phosphate coated scaffolds accelerate ectopic bone formation in the context of a long term cultured cellular construct.

A team of researchers has learned that the powerful 1997 - 98 El Niño event dramatically accelerated the melting of the ice shelves buttressing glaciers in West Antarctica's Amundsen sea sector.

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.

The melting of the Greenland icecap is accelerating at an alarming rate, about 500 billion tons at the last measurement.

Rapid Arctic sea - ice decline: Summer - time melting of Arctic sea - ice has accelerated far beyond the expectations of climate models.

And the more that sea ice melts, the more energy is absorbed — a positive feedback mechanism of accelerating warming and ice loss, he said.