Sentences with phrase «further melting of the ice sheets»

Further melting of the ice sheets will destroy the climate conditions which allowed agriculture and the rise of civilisation in the first place.

Not exact matches

Further, the less time an ice sheet has to create new layers of ice each winter, the less strong ice is created and built into centuries of previous strong sea ice, leaving ever more vulnerable and easy - to - melt sea ice.

Over hundreds or thousands of years, vast ice sheets can melt away, further decreasing the planet's reflectivity.

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.

In the San Francisco Bay area, sea level rise alone could inundate an area of between 50 and 410 square kilometres by 2100, depending both on how much action is taken to limit further global warming and how fast the polar ice sheets melt.

On its own, sea level rise could inundate between 50 and 410 square kilometres of this area by 2100, depending on how much is done to limit further global warming and how fast the polar ice sheets melt.

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.

Additionally, it is postulated that the warming climate will likely extend melt seasons, leading to increases in biological activity and thus contributing further to the darkening of glaciers and ice sheets (Benning et al., 2014).

Further, melt - water of the floating ice - sheets will reoccupy same volume of the displaced water by floating ice - sheets causing no sea - level rise.

Other factors would include: — albedo shifts (both from ice > water, and from increased biological activity, and from edge melt revealing more land, and from more old dust coming to the surface...); — direct effect of CO2 on ice (the former weakens the latter); — increasing, and increasingly warm, rain fall on ice; — «stuck» weather systems bringing more and more warm tropical air ever further toward the poles; — melting of sea ice shelf increasing mobility of glaciers; — sea water getting under parts of the ice sheets where the base is below sea level; — melt water lubricating the ice sheet base; — changes in ocean currents -LRB-?)

By now, it's pretty clear that we're starting to see visible manifestations of climate change beyond far - off melting ice sheets.

The impacts of ice shelf collapse and ensuing glacier acceleration are substantial, but in general, the effects of ocean melt are proving to be far more important in controlling ice sheet mass balance.

In fact it is a very risky target for all of us: so far, temperatures have increased by just.8 degree Celsius and we are already experiencing many alarming impacts, including the unprecedented melting of the Greenland ice sheet in the summer of 2012 and the acidification of oceans far more rapidly than expected.

«Even with just a further 3C of warming — well within the range to which the UN climate science panel expects temperatures to rise by the end of the century — nearly one - fifth of the planet's 720 world heritage sites will affected as ice sheets melt and warming oceans expand.»

Arctic warming alters weather patterns far from the region and also accelerates sea level rise globally with the melting of the massive Greenland ice sheet.

The summer of 2012 brought Greenland far more extensive melt than anything observed in the satellite record: in July 2012, surface melt extended over nearly the entire ice sheet.

That the last little bit of ice in the arctic is melting, an ice sheet that once covered huge swaths of North America as far south as the US Rockies, upper Midwest and all of New England, is hardly proof that humans are changing the climate.

In 2005 the Greenland ice sheet lost around 53 cubic miles (220 cubic kilometers) of mass — more than two times the amount it lost in 1996 (22 cubic miles, or 90 cubic kilometers).5 The melt area set a new record in 2007: it was about 60 percent larger than the previous record in 1998, and extended farther inland.7, 8 By 2007 the melt season at elevations above 6,500 feet (2,000 meters) was a month longer than the average from 1988 to 2006.9

«A new study by researchers from the California Institute of Technology's Jet Propulsion Laboratory and the University of California at Santa Cruz, published in the respected journal Science, found that the ice sheets of Antarctica, far from melting, actually are expanding by some 26.8 billion tons of ice a year.2

The scientists want to continue to study patterns in this crucial temperature - regulating system, to understand whether as ice sheets continue to melt, this could drive further slowdown — or even a shutdown of a system that regulates our climate.

The processes include water from melting on the surface of the ice sheet to flow down into crevasses and widen them further.

Melt of the Greenland ice sheet is further enhanced by a prolonged inflow of warm, moist air traced back to Arctic sea ice loss.

Further, it may be concluded that man - made CO2 does not cause accelerated rates of ocean heating, ice sheet and sea ice melt, or surface temperature heating.

A question that needs to be further addressed is the extent to which projected changes in Greenland ice sheet melting could affect the amount and location of

Second, the ocean near the melting ice sheet drops because the smaller ice - sheet mass has less gravitational attraction for ocean water than before, and thus the water released from the former gravitational attraction of the ice sheet causes additional sea - level rise far from the ice sheet.

The biggest problem seems to be for ice sheet melt, in the discrepancy between the paleoevidence and the models, with models producing rates of melting far below both the paleoevidence and current observations.

Further melting of the Antarctic and Greenland ice sheets can only result in sea level rises on the scale of tens of metres, changing the continent - ocean map of Earth.

and temperature shows a drop (1 °C) but immediately after that a rise of 4 °C, while ice sheets melt further back to minimum.

They determined, however, that this volume had now increased by a further 3 cubic miles each year, prompted by an acceleration in the rate at which the ice caps and glaciers are melting.Unlike what many other scientists have said — including, most prominently, NASA's James Hansen (who believes that a rise in 17 inches by 2100 will be mainly precipitated by the melting of ice sheets)-- the authors of this study believe that the loss of ice from glaciers and ice caps will account for the majority of the expected rise in sea levels.

These studies underscore an important point: Being far away from a melting ice sheet is no source of safety.

The question is how far will the levels of CO2, CH4, N - oxide, CFC and HFC, global land - sea temperatures, melting of ice sheets and glaciers, and sea levels need to rise before the critics realize that the delicate balance of the Earth's atmosphere — the thin lung - like membrane on which advanced life depends — must not be abused as an open sewer for industrial waste products.

Most of the melting now is at the center of the glacier, but the fear according to scientists is that the center melting could break up the glacier and affect the ice sheet further inland.

With sea levels predicted to rise almost 70 m if all the ice sheets were to melt, the scientists are hoping to take advantage of the data gleaned from these GPS stations to gain a better understanding of the sheet changes and anticipate the likely effects precipitated by further global climate change.

Each increase in temperature drives the upper edge of the melt zone farther inland and higher up the ice sheet.

Further, there has been an almost worldwide reduction in glacial mass and extent in the 20th century; melting of the Greenland Ice Sheet has recently become apparent; snow cover has decreased in many Northern Hemisphere regions; sea ice thickness and extent have decreased in the Arctic in all seasons, most dramatically in spring and summer; the oceans are warming; and sea level is rising due to thermal expansion of the oceans and melting of land Ice Sheet has recently become apparent; snow cover has decreased in many Northern Hemisphere regions; sea ice thickness and extent have decreased in the Arctic in all seasons, most dramatically in spring and summer; the oceans are warming; and sea level is rising due to thermal expansion of the oceans and melting of land ice thickness and extent have decreased in the Arctic in all seasons, most dramatically in spring and summer; the oceans are warming; and sea level is rising due to thermal expansion of the oceans and melting of land iceice