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Topic: Ice age


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  Ice age - Wikipedia, the free encyclopedia
Glaciologically, ice age is often used to mean a period of ice sheets in the northern and southern hemispheres; by this definition we are still in an ice age (because the Greenland and Antarctic ice sheets still exist).
The earliest well-documented ice age, and probably the most severe of the last 1 billion years, occurred from 800 to 600 million years ago (the Cryogenian period) and it has been suggested that it produced a Snowball Earth in which permanent sea ice extended to or very near the equator.
The present ice ages are the most studied and best understood, particularly the last 400,000 years, since this is the period covered by ice cores that record atmospheric composition and proxies for temperature and ice volume.
en.wikipedia.org /wiki/Ice_age   (2040 words)

  
 Little Ice Age - Wikipedia, the free encyclopedia
The Little Ice Age (LIA) was a period of cooling lasting approximately from the 14th to the mid-19th centuries, although there is no generally agreed start or end date: some confine the period to 1550-1850.
The Little Ice Age can be seen in the art of the time; for example, snow dominates many village-scapes by the Flemish painter Pieter Brueghel the Younger, who lived from 1564 to 1638.
Ice cores from the Upper Fremont Glacier in North America and the Quelccaya Ice Cap (Peruvian Andes, South America) show similar changes during the LIA [11].
en.wikipedia.org /wiki/Little_Ice_Age   (2273 words)

  
 Ice Age
Ice Age is the 20th Century Fox's attempt at taking a bite out of Disney, something that Dreamworks is slowly attempting with some success.
The Ice Age is beginning, and all the animals are migrating south to warmer places.
Ice Age quietly tricks children into enjoying a movie and quite possibly learning some "values." Adults can marvel at the animation and chuckle along with some of the jokes that will go over the heads of their kids.
www.haro-online.com /movies/ice_age.html   (532 words)

  
 Ice age at opensource encyclopedia   (Site not responding. Last check: 2007-10-22)
An ice age is a period of long-term downturn in the temperature of Earth's climate, resulting in an expansion of the polar ice caps and mountain glaciers ("glaciation").
Glaciologically, ice age is often used to mean a period of ice sheets in the northern and southern hemispheres; by this definition we are still in an ice age.
For reasons that are unclear, an abundance of land in the arctic and antarctic circles appears to be a necessity for an ice age.
www.wiki.tatet.com /Ice_age.html   (1404 words)

  
 Ice Age   (Site not responding. Last check: 2007-10-22)
Ice Age stars Scrat, a hapless little prehistoric rodent who triggers disaster by trying to bury an acorn in a glacier.
Ice Age uses a much less literal visual style and keeps the action moving and the dialog light.
Ice Age is nevertheless a pleasant enough way to spend a matinee afternoon with the children in your life.
www.culturevulture.net /Movies3/IceAge.htm   (494 words)

  
 IGN: Ice Age Review
Ice Age brought in close to $180 million and is shaping up to be one of 2002's biggest moneymakers.
Ice Age opens with Scrat (a cross between a squirrel and a rat) punching an acorn through the ice which sets off a huge glacier movement.
Ice Age is essentially free from any sort of compression artifacting as it was pulled directly from the digital animation files.
dvd.ign.com /articles/375/375716p1.html   (916 words)

  
 Freeze Frame - The Ice Age in Indiana
The Ice Age refers to the period of geologic time encompassing the past 2 to 3 million years or so when the earth's higher and mid-latitudes experienced widespread glaciation by huge, continental-scale ice sheets.
The Ice Age is the most recent of several periods of widespread glaciation that have affected the earth.
That is why scientists believe that ice flow was initially directed along the courses of large bedrock valley systems that had developed over tens of millions of years of stream erosion during the generally mild and wet period known as the Tertiary.
igs.indiana.edu /geology/ancient/freezeframe/index.cfm   (1007 words)

  
 Ice Age Animals of Utah - Utah Geological Survey
The Ice Age is also known as the Pleistocene Epoch, which lasted from about 2 million to 10,000 years ago, and was a period of recurring widespread glaciations.
Ice ages have actually occurred periodically throughout the history of the Earth.
The animals that lived in Utah during the Ice Age included many of the same animals that we find here today, as well as many extinct forms such as mammoths, mastodons, ground sloths, and saber-toothed cats.
geology.utah.gov /utahgeo/dinofossil/iceage/iceage.htm   (737 words)

  
 CVO Website - Glaciations and Ice Sheets
During the Pleistocene Epoch Ice Age, beginning about 2.5 million years ago, virtually all of southwestern Canada was repeatedly glaciated by ice sheets that also covered much of Alaska, northern Washington, Idaho, Montana, and the rest of northern United States.
Continued ice retreat permitted the sea to enter Puget Sound, and a glaciomarine interval ensued from 13,500 to 11,500 years B.P. Stillstands or readvances of the ice margin occurred during and near the end of the glaciomarine interval.
Within the ice filled Grimsvötn caldera intense geothermal activity continuously melts the ice to form a subglacial lake, which at intervals of 5 to 10 years is emptied along subglacial channels to create large floods (jökulhlaup) on the sandur plain, Skeidararsandur, on the Icelandic south coast.
vulcan.wr.usgs.gov /Glossary/Glaciers/IceSheets/description_ice_sheets.html   (7881 words)

  
 Ireland in the last Ice Age
The Ice Age left the surface relief much as it now is, except that coastlines have been significantly altered by a subsequent rise of the sea-level caused by the melting of the ice [1].
Trapped between this land bridge, and the ice sheet in the north, the Irish Sea was filled forming a vast freshwater lake.
Although all the ice was gone by 10,000 years ago, the sea levels continued to rise reaching a level 2 metres (7 feet) below their current level by 3000 years ago [3].
www.fortunecity.com /bally/sligo/93/past/pre_norman_history/iceage.html   (945 words)

  
 Ocean & Climate Change Institute - Abrupt Climate Change   (Site not responding. Last check: 2007-10-22)
The period of these shifts are related to changes in the tilt of Earth’s rotational axis (41,000 years), changes in the orientation of Earth’s elliptical orbit around the sun, called the “precession of the equinoxes” (23,000 years), and to changes in the shape (more round or less round) of the elliptical orbit (100,000 years).
The theory that orbital shifts caused the waxing and waning of ice ages was first pointed out by James Croll in the 19th Century and developed more fully by Milutin Milankovitch in 1938.
In addition to incorporating a terrestrial biosphere and polar ice, which both play a large role in the reflectivity of solar radiation, one has to accurately parameterize mixing that occurs on centimeter to tens of centimeter scales in the ocean.
www.whoi.edu /institutes/occi/currenttopics/abruptclimate_joyce_keigwin.html   (2830 words)

  
 Ice Age
As George viewed the film and listened to the reactions of kids in the audience, he noticed there was a mixture of fear for natural enemies (animals who survive by eating other animals) and joy as various species did positive things within their own "culture" as well as helping others.
While "Ice Age" is not as slickly produced as "Shrek" or "Monsters, Inc.," it's a thoroughly enjoyable film, along the lines of "Jimmy Neutron: Boy Genius." Of the four films, this one is probably the most fun for the very young and the easiest to see a second time because of its lighthearted cartoon-like flavor.
The opening and closing scenes of "Ice Age" are destined to become classics and when this film comes out on video we'll add it to our library.
www.reelmoviecritic.com /2002/id1751.htm   (533 words)

  
 [No title]
Large ice sheets began to grow in the northern latitudes when the snow that fell in winter failed to melt, and instead piled up from one year to the next until it reached thousands of metres in thickness.
Even in areas that were not directly affected by the ice sheets, aridity began to cause forests to die and to give way to dry grassland, which requires less water to survive.
The ice melted back partially, and there followed a long 'middling' phase in which the climate oscillated between warmer and colder conditions, often in sudden jumps.
www.esd.ornl.gov /projects/qen/nerc130k.html   (2439 words)

  
 ES 331/767 Glossary
Deglaciation is the opposite, the shrinking of ice sheets and glaciers to uncover land areas; the world is presently in an interglaciation in which roughly 10% of the land is ice covered.
Glacier accumulation/ablation: gain of ice mass mainly through snowfall by a glacier; ablation is the loss of mass mainly by melting or calving.
Glacier ice: ice formed from the accumulation and recrystallization of snow, which exhibits past or present flow.
academic.emporia.edu /aberjame/ice/gloss.htm   (2277 words)

  
 AlterNet: The Ice Age Cometh
We knew from the fossil record that the Great Ice Age period began a few million years ago, and during those years there were times where for hundreds or thousands of years North America, Europe, and Siberia were covered with thick sheets of ice year-round.
Looking at the ice cores, however, scientists were shocked to discover that the transitions from ice age-like weather to contemporary-type weather usually took only two or three years.
When the ice in the Arctic Ocean is frozen solid and locked up, and the glaciers on Greenland are relatively stable, this variation warms and cools the Earth in a very small way, but doesn't affect the operation of the Great Conveyor Belt that brings moderating warm water into the North Atlantic.
www.alternet.org /story.html?StoryID=17711   (1956 words)

  
 ICE AGE (PG): ChildCare Action Project (CAP) Media Analysis Report MAR22023
Ice Age is also an excursion into the supposedly pre-ice age, post-dinosaur, dawn of man theory of evolution.
Ice Age presented no uses of foul language, no presentations of sexual programming of any kind were noted, and absolutely no drugs and/or alcohol uses.
Indeed, Ice Age is a good way to indoctrinate your children to the theory of evolution if you are into that sort of thing.
www.capalert.com /capreports/iceage.htm   (1978 words)

  
 Tkachuck, R. D. --- The Little Ice Age
Several large-scale ice movements are postulated to have occurred in the Pleistocene epoch.
The Little Ice Age is not characterized by similar amounts of polar ice so far south but rather by a period of several hundred years in which the winters were particularly severe in the Northern Hemisphere.
Another theory for the cause of the Little Ice Age centers not on the atmospheric restriction of the amount of energy flowing into the earth, but on the concept that the sun itself is variable in its energy production.
www.grisda.org /origins/10051.htm   (4077 words)

  
 ICE AGE
One thing the computer-animated Ice Age establishes early on is that it wasn't made by Disney.
Whereas Shrek was filled with irreverent humor, Age doesn't have as much to offer adult viewers, opting instead for scenes like the one where Sid invents skiing, slalom, snowboarding and the half-pipe within seconds of each other.
Age doesn't come close to the triumph of Shrek or Monsters, Inc., though it's not nearly as dull as Fox's previous cartoon offerings (Titan AE, Anastasia, The King and I) that led to the studio permanently shuttering their traditional animated division.
www.sick-boy.com /iceage.htm   (440 words)

  
 Ice Age Q&A
An Ice Age Caused by the Genesis Flood (Softcover)
Ice Cores and the Age of the Earth (Softcover)
Ice cores and the age of the earth (Semi-Technical — ICR Impact 226 1992)
www.answersingenesis.org /home/area/faq/iceage.asp   (254 words)

  
 The Little Ice Age in Europe - Influence of Dramatic Climate Shifts on European Civilizations: The Rise and Fall of the ...
Many birds, ducks, partidges, woodcock, and flbirds died and were found on the roads and on the thick ice and frequent snow.
Sea level was likely increased by the long-term ice melt during the MWP which compounded the flooding.
On many occasions bishops and priests were called to bless the fields and to pray that the ice stopped grinding forward (Bryson, 1977.) Various tax records show glaciers over the years destroying whole towns caught in their path.
www2.sunysuffolk.edu /mandias/lia/little_ice_age.html   (2682 words)

  
 Ice Age Mammals - EnchantedLearning.com
During the last Ice Age, there were many large, interesting mammals, like the saber-toothed cats, giant ground sloths, mastodons, and mammoths.
Coelodonta, the woolly rhino, is from the Pleistocene epoch and survived the last ice age.
The tusks were used for protection, in interspecies dominance, and for digging in the snow of the ice ages for grass and other food.
www.zoomdinosaurs.com /subjects/mammals/Iceagemammals.shtml   (2590 words)

  
 Ice Age - Magic: The Gathering
Ice Age continues the story of Terisiare, the setting for the conflict in Antiquities.
Thousands of years after the explosion at Argoth ended the Brothers' War, a severe Ice Age has descended over Dominaria, changing the face of the land and reducing the civilizations of Terisiare to scattered tribes.
Released in June 1995, Ice Age was the most anticipated set of the era.
www.wizards.com /magic/expert/Ice_Age/Ice_Age.asp   (192 words)

  
 The Ice Age--Earth Science/Animals/Plants lesson plan (grades 9-12)--DiscoverySchool.com   (Site not responding. Last check: 2007-10-22)
The term Ice Age refers to the last major glaciation that occurred in North America and Eurasia, from 2 million to 11,500 years ago, during the Pleistocene period.
Review basic facts about ice ages and the Ice Age with students, such as what an ice age is and why they occur.
Definition: An ice age is a period in the Earth’s history when ice sheets cover vast regions of land; when capitalized, the term refers to the Pleistocene glacial epoch, from 2 million to 11,500 years ago.
school.discovery.com /lessonplans/programs/iceage   (1570 words)

  
 Last Ice Age   (Site not responding. Last check: 2007-10-22)
When the Earth is in its "Ice House" climate mode, there is ice at the poles.
The polar ice sheet expands and contacts because of variations in the Earth's orbit (Milankovitch cycles).
The last expansion of the polar ice sheets took place about 18,000 years ago.
www.scotese.com /lastice.htm   (61 words)

  
 SPACE.com -- Mars Emerging from Ice Age, Data Suggest
New data points to the possibility it is emerging from an ice age.
High latitude regions of Mars have layers with differing ice content within the top 20 inches (half-meter) or so of the surface, researchers conclude from mapping of hydrogen abundance based on gamma-ray emissions.
The middle layer could be the result of changes brought in a warmer era, when ice down to a certain depth dissipated into the atmosphere.
www.space.com /scienceastronomy/mars_ice-age_031208.html   (716 words)

  
 Ice Age (2002): Reviews
Ice Age never matches the brilliance of ''Toy Story'' or the heartfelt heft of ''Shrek,'' but it's an antic and sweet-spirited pleasure.
Ice Age snaps with visual wit whenever director Wedge breaks the stale story to pieces and pumps in some bracing fresh air.
If Ice Age lacks the fit and finish of top-of-the-line films from Pixar, DreamWorks or Disney, it's still an impressive piece of work for a new feature animation group, and a harbinger of cool cartoons to come.
www.metacritic.com /video/titles/iceage   (1039 words)

  
 Ice Age
At a certain point, the growth process becomes self-feeding, partly because the high reflectivity of ice and snow reduces the local temperature, partly for reasons that are not fully understood.
Geological evidence shows that in the last Ice Age, the southern boundary of the continental ice sheet, known as a terminal moraine, stretched down the center of Long Island, through New York City, across New Jersey and Pennsylvania to Southern Illinois and Missouri, then up the Plains States through Montana and Washington State.
The geological requirements for an Ice Age are the presence of a large landmass around the Polar Circle and extending southward.
www.21stcenturysciencetech.com /articles/Ice_Age.html   (999 words)

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