Sentences with phrase «which parts of the ice sheet»

The discovery raises fresh questions about the speed at which sea levels might rise in a warmer world due to the rate at which parts of the ice sheets slide from the land into the ocean, scientists said at the American Association for the Advancement of Science in San Francisco.

Not exact matches

But now Jonathan Bamber at Bristol University, UK, has analysed which parts of the West Antarctic ice sheet are vulnerable.

Thousands of marks on the Antarctic seafloor, caused by icebergs which broke free from glaciers more than ten thousand years ago, show how part of the Antarctic Ice Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabIce Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabice age as it balanced precariously on sloping ground and became unstable.

the south - bound expedition had cleared that vast plain of floating ice which flows down from the great mountains of the interior and covers the southern part of Ross Sea throughout an area above 20,000 square miles with an ice sheet approximately 800 feet in thickness, and had begun to climb the heights which form the mountainous embayment at the head of Ross Sea.

Williamson is part of a five - year project investigating the impact of ice algae, which is different than snow algae, and bacteria on the Greenland ice sheet (SN: 5/20/00, p. 328).

Ash was part of Expedition 374, which spent 46 days at sea this year to study the evolution of the Ross Sea ice sheet off West Antarctica and the relationship between climatic and oceanic change through the Neogene and Quaternary periods, from 23 million years ago to the present day.

One time when everyone was stuck on a sheet of ice on an uphill part of the highway and I was able to maneuver around those cars (some of which were also trucks)-- showing the ability of my truck to handle tough conditions.

Regular followers of RealClimate will be aware of our publication in 2009 in Nature, showing that West Antarctica — the part of the Antarctic ice sheet that is currently contributing the most to sea level rise, and which has the potential to become unstable and contribute a lot more (3 meters!)

Its key finding is that during the Pliocene there occurred a series of long, warm intervals during which parts of the East Antarctic Ice - Sheet margin retreated hundreds of kilometres inland.

Indeed, if we closely look back at the map of the «rising» /» falling» tide gauges in Figure 8, we can see that some areas which would have been under or near the ice sheets during the glacial era show mostly «falling» trends (e.g., Fennoscandia in northern Europe, Alaska in US), while neighbouring areas show mostly «rising» trends (e.g., the parts of northern Europe south of Fennoscandia, northeastern North America).

Following Twemoran advice, I wrote to all London MEP (8 representatives) a little more than 2 weeks ago, summarizing the impact of the Arctic amplification (on permafrost, methane hydrate and Greenland ice sheet) and the impact on NH climate with the slowing down of the jet stream and more extreme weather (+ further down the line potential issue on food security) I also attached the «Weird winter mad March Part 2» video with extract of numerous scientists of which Jeff Masters and J. Francis to illustrate the impact on NH climate.

The chemical tracers also show that circulation slowed almost to a halt during certain stadials known as Heinrich events, when massive amounts of icebergs broke off and drifted away from the Laurentide ice sheet, which covered a large part of North America at the time.

Thus, West Antarctica is not the only potential source of rapid change; part of the East Antarctic ice sheet is also susceptible to rapid retreat because of its direct contact with the ocean and because the bed beneath the ice slopes landward (Fig. 1), which makes it less stable.

(Part of the How to Talk to a Global Warming Skeptic guide) Objection: The Antarctic ice sheets are actually growing, which wouldn't be happening if global warming were real.

The most alarming possible cause of sea - level rise is a rapid disintegration of the West Antarctic ice - sheet, which is the part of Antarctica where the bottom of the ice is far below sea level.

abrupt climate change occurring «over periods as short as decades or years,» which could be brought on by positive feedbacks triggered by such events as ice sheet collapse on a large scale, the collapse of part of the Gulf Stream, dieback of the Amazon forest, or coral reef die - off.

The remaining amount is coming from increased surface melting, which is no longer confined to the southern part of the ice sheet — the amount of ice accumulating in the inland part of the ice sheet is starting to decline as well.