Sentences with phrase «under glaciers as»

Trees and old human artefact are being found under glaciers as they shrink back to a more NORMAL size.

Not exact matches

Just over 1 % of our planet's glaciers — some 2300 in all — are known to undergo these precipitous movements, though the number is likely to rise as glaciers come under closer surveillance by remote sensing.

This is because the campaign's seafloor survey revealed features under the ocean, such as troughs cut by glaciers during the last ice age, which must continue upstream under the glacial ice.

Understanding how layers of air insulate the surface of glaciers, for example, is vital to making accurate estimates of how fast they will melt — and sea levels will rise — as the Earth warms under its blanket of greenhouse gases.

I suppose that as the under side of the glacier melts, the resulting fresh water mixes with the adjacent salt water, making it lighter and causing it to flow upwards along the under side of the ice.

Under warming conditions glaciers may contribute as much as more than half a meter by 2100.»

Close - up of small glaciers from a previous image, as seen by HiRISE under the HiWish program.

A long terms study of a glacier draining the Grimsvotn volcano under the Vatnojokull Ice Cap indicate that there is an initial acceleration due to increased basal melt water pressure, as the flux increasing from the activity.

Equivalently, while the increase in terminus speed and the glaciers overall maximum speed may remain under a factor of five, as the terminus retreats farther inland where the speeds now are comparatively slow, the relative speedup is much greater (e.g., if the terminus retreated to M26 with a speed of 16 000 m yr − 1, this would represent a twelve-fold speedup).

As glaciers in the Himalayas melt faster due to global warming, pollutants buried under them are finding their way down to the north Indian plains.

Warm ocean water plays a significant role in melting glacial ice from below, and a better mapping of Antarctica's and Greenland's landforms beneath the ice suggests that ocean melting of the glacier fronts may play a more significant role than previously thought as the ice sheets retreat (under a global warming scenario).

Shifting currents, increased freshwater input from melting sea ice and glaciers, and changes in upper and lower sea - level circulation patterns are already occurring, and they'll progress rapidly if anthropogenic greenhouse gas emission continues under a business - as - usual scenario.

Tree stumps and even human artefacts have been discovered under NATURALLY RETREATING glaciers as the climate WARMS NATURALLY from the coldest period in 10,000 years.

As much as 70 percent of the ice within the great Himalayan glaciers could melt out by 2100 under business as usual fossil fuel burninAs much as 70 percent of the ice within the great Himalayan glaciers could melt out by 2100 under business as usual fossil fuel burninas 70 percent of the ice within the great Himalayan glaciers could melt out by 2100 under business as usual fossil fuel burninas usual fossil fuel burning.

Sadly, many new studies on the rate of glacier destabilization in Antarctica and Greenland hint that such a significant jump in sea level is not only likely, but may even be significantly exceeded under business as usual or even a moderately curtailed rate of fossil fuel burning.

I say CO2 simply follows ocean outgassing / absorption as it warms and cools and temperatures are bounded by planetary albedo i.e. how much land can potentially be locked under high albedo glaciers or alternatively how much can be exposed to present a lower albedo.

However, there have been other studies in both the Swiss and Austrian alps (e.g. Schlüchter, Patzelt), which have found carbon - dated remains of trees under receding glaciers, supporting the conclusion that the glacial extent during the Roman Warm Period and the MWP (as well as during earlier warm periods) was less than today.

As glaciers across South America gradually vanish from existence, another key, but often underlooked, source of water — lakes — are also under threat.

However, uncertainty about the current state of Himalayan glaciers (4) and the future state of the climate, as well as an incomplete understanding of the processes affecting Himalayan glaciers under the current climate, make any projections of climate change's impact on glaciers uncertain as well (2, 23, 17, 39).

R.K.P: Our glaciers are under the same influences, the same temperature changes, as other glaciers in the world.

Glaciers will be history as of 2036, when they likewise predict the demise of British royalty (wishful thinking from Down Under?)

And now, right on cue, comes this article from Isabel Hilton on Guardian Environment http://www.guardian.co.uk/commentisfree/cif-green/2010/jan/20/real-scandal-himalayas in which she states, among other things, that: «Kyrgyzstan, scientists predict, will lose 80 % of its water supply» [from glacier depletion] which provokes the following comment from the excellent MrEugenides: «This figure comes from an article Isabel herself wrote on 6 October 2009, quoting a local bureaucrat as saying that water supplies were under pressure from a variety of factors from river diversion and increased water usage to climate change.