Recent Changes

Why
why are Glaciersglaciers important to people?
.
The most fearmain reasons glaciers are so important is that with worldwide temperatures rising, the glaciers have began to melt, releasing huge amountsthey are a big part of our drinking water held inside. The oceans processessource, actually its 69% of the worlds drinking water. Glaciers also keep our waters and structures we have adapted to will abruptly change, with unknown consequences.
Glaciersatmosphere cool but greenhouse gases are important because itreally warming them up. Another thing is just frozen snow, andthat if the glaciers were to all melt away then the water contained in them is freshwould rise up about 70 meters and many cities would be covered by water. It is important alsoPlus many people like to go climb the glaciers ,as well as go see the glaciers because mostmany find them as a beautiful sight to see.
Glaciers keep our world from getting to hot, are fun to climb on, are 69% of the Earths water is saltour source of drinking water, that cannot be usedand polar bears live on them and relies on them for drinking water or watering crops,their homes, and three quarters of the earths fresh water is inare very pretty to see to many people. glaciers are very much liked and ice caps.
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links: www.uk.danfossuniverse.comobviously seems to be needed.
{http://www.portwallpaper.com/imgwal/ice-glaciers.jpg}
{http://www.alaska-in-pictures.com/data/media/16/le-conte-glacier_6772.jpg}
links: http://ga.water.usgs.gov/edu/earthglacier.html
www.waterencyclopedia.com

{tempano.jpg} An arched glacier that has a crack in it. Its pretty amazing though.
How Do Glaciers Change Geography, Surfaces and even the earth itself?
Glaciers not only transport material as they move, but they also sculpt and carvepush away the land beneath them. The ice totally changes the landscape. The ice erodes the land surfaceall that is under it and carriesall around it, (except for the broken rocks and soil far from their original locations. Glaciated valleysIce itself, otherwise there wouldn't be glaciers.) There are probably the most visible landform caused by the movementa lot of Like fords, theydifferent ways glaciers change geography: Freeze land (sometimes) Form beautiful landscapes, keep water from flooding (freezes water inside). Those are trough-shaped, often with steep vertical cliffs where entire mountainsides were removed by glacial movement. One ofa few for starters, ways that glaciers change the most striking examples of glaciated valleysearth include: Make changes to flow in water, it allows people to drink water that usually couldn't drink water, (as a good thing) and can be seen in Yosemite National Park where glaciers literally sheared away mountainsides, creating deep valleys with vertical walls.
Movement ofcause issues for people that live near them. Glaciers
There are two types change surfaces of glacial movement: sliders and creepers. Sliders travel along a thin film of water located on the bottom ofearth by freezing the glacier. Creepers, on the other hand, form internal layers of ice crystalsland, preserving "Fresh Water" water that move past one another based on the surrounding conditions (e.g. weight, pressure, temperature). The tophumans drink and middle layersneed. If we destroy these glaciers we may run out of a glacier tendsource we could use to move faster than the rest. Most glaciers are both creeperskeep our civilization alive. If we don't help other countries, civilizations and sliders, plodding along in both fashions.
Glacier speedeven eachother, we can vary from virtually at rest to a kilometer or more per year. On average, though, glaciers move at the laggardly pace of a couple hundred feet per year. In general, a heavier glacier moves quicker than a lighter one, a steep glacier quicker than a less steep one, a warmer glacier quicker than a cooler one.stop future wars, plots, and quarrels.
As glaciers melt, they release fresh water. That sounds like a good thing, and it would be if we could send the water to the places that need it.
Unfortunately, almost all the water goes into the oceans and that's where the problems start. An obvious result of more water in the oceans is that sea levels rise.

How fast the glacier moves also depends on on its environment, and the glacier itself. Where glaciers in New Zealand only move around one meter a day, other glaciers, called surging glaciers can move much more rapidly. Some surging glaciers can move around 333 feet in one day. Sadly though, due to global climate change, rising temperatures are effecting weather patterns that usually allow ice and snow build up. Many glaciers are receding now much faster than they are advancing.
Links
http://www.youtube.com/watch?v=KJ6_0Jzgigc
//How fast do glaciers move//? | GreenAnswers
Glacier Cool Fact!

How Fast Do Glaciers Move?
Majority of glaciers do not move very fast. Most only move around one foot a day. Though some have been known to move as much as 50 feet in one day. Not all the glacier moves at one time. The glacier is split into 3 layers and each moves a different pace. The bottom layer moves the slowest, being as it glides against the ground. As for the top two layers, they move faster, being as they are gliding on ice. The way scientists measure the speed of a glacier, is by pounding stakes into different positions in the glaciers, and watching how fast, or slow, they move.
howHow fast the are advancing.
Linkshttp://www.youtube.com/watch?v=KJ6_0Jzgigc
Links
http://www.youtube.com/watch?v=KJ6_0Jzgigc
//How fast do glaciers move//? | GreenAnswers
Glacier Cool Fact!
The fastest Glacier movement recorded in one day is Quarayaq Glacier. It moved 80 feet in one day! It is currently located in Greenland.

How Fast Do Glaciers Move?
fast. Most average about aonly move around one foot a day, as read on bigsiteofamazingfacts.com.day. Though some arehave been known to one day. The farthest anyNot all the glacier moves at one time. The glacier has ever movedis split into 3 layers and each moves a different pace. The bottom layer moves the slowest, being as it glides against the ground. As for the top two layers, they move faster, being as they are gliding on ice. The way scientists measure the speed of a glacier, is by pounding stakes into different positions in the glaciers, and watching how fast, or slow, they move.
how fast the glacier moves also depends on on its environment, and the glacier itself. Where glaciers in New Zealand only move around one day is 80 feet. meter a day, other glaciers, called surging glaciers can move much more rapidly. Some surging glaciers can move around 333 feet in one day. Sadly though, due to global climate change, rising temperatures are effecting weather patterns that usually allow ice and snow build up. Many glaciers are receding now much faster than they are advancing.
Linkshttp://www.youtube.com/watch?v=KJ6_0Jzgigc

How Fast Do Glaciers Move?
Majority of glaciers do not move very fast. Most average about a foot a day, as read on bigsiteofamazingfacts.com. Though some are known to move as much as 50 feet in one day. The farthest any one glacier has ever moved in one day is 80 feet.

{http://www.ncdc.noaa.gov/paleo/pubs/alley2000/alley2000.gif} This graph shows the climate for the last 20 thousand years. Ice cores were used to make this.
{http://global-warming.accuweather.com/2872-thumb.jpg} This is a core sample from a McCall Glacier in the Arctic National Wildlife Refuge.
in northern Alaska. SpecialAlaska.Special thanks to:www.sciencedaily.comwww.ouramazingplanet.comwww.newscientist.comwww.newscientist.com to:www.sciencedaily.comwww.ouramazingplanet.comwww.newscientist.comwww.scientificamerican.com

How Do We Learn From Glaciers?
A cool glacier fact- The longest ice core ever was about 3km long. it was taken in 2004 in Antartica.
The way that scientists use ice cores from glaciers is to study the climate from many years ago. The scientists can take the ice and put it in a sealed, airtight container and let it melt and then study the different gases in the air. Studies like this have shown that the Earth's atmosphere has been very polluted in the past by natural causes. Scientists have used ice cores to basicly map out the changes in the climate for the last few thousand years. It has let scientists see that in the past there were annual changes in climate, some were larger than others. Every year the climate changes from low carbon dioxide in the summer, to a much higher amount in the winter. Scientists can also look at debries in the ice cores to tell of diffrent events that occured in the area like volcanic eruptions or even diffirent types of insects or other organic creatures. Scientists have even found entire ancient ecosystems in valleys that are know frozen over, which are now visible because of the melting ice. We have learned many different things from glaciers, but there are still many different things that we can still learn. We won't have a chance to discover more about earth's past if all of the glaciers melt away, which they are doing right now. We must do something to stop that from happening.
{http://www.ncdc.noaa.gov/paleo/pubs/alley2000/alley2000.gif} This graph shows the climate for the last 20 thousand years. Ice cores were used to make this.
{http://global-warming.accuweather.com/2872-thumb.jpg} This is a core sample from a McCall Glacier in the Arctic National Wildlife Refuge.
{http://mappery.com/maps/McCall-Glacier-Topo-Map.mediumthumb.jpg} This is the McCall Glacier from which many samples have been taken. It is in northern Alaska. Special thanks to:www.sciencedaily.comwww.ouramazingplanet.comwww.newscientist.comwww.newscientist.com