Difference between revisions of "Ice age"

From Conservapedia
Jump to: navigation, search
(It was Agassiz; see talk.)
(improved intro)
 
(36 intermediate revisions by 16 users not shown)
Line 1: Line 1:
An '''Ice Age''' is a theory first proposed by [[Louis Agassiz]] to explain anomalies such as the existence of the [[Great Lakes]].<ref>[http://earthguide.ucsd.edu/virtualmuseum/climatechange2/02_1.shtml Discovery of the Great Ice Age]</ref><ref>Aber, James S., [http://academic.emporia.edu/aberjame/histgeol/agassiz/agassiz.htm Jean Louis Rodolphe Agassiz]</ref>  The theory suggests that there were one or more periods of [[Earth]]'s history when [[ice]] sheets covered a much larger part of the [[planet]] than is currently the case.
+
An '''Ice Age''' is a period of [[Earth]]'s history when [[ice]] sheets supposedly covered a much larger part of the [[planet]] than is currently the case.
  
Earth and rock worn and smoothed by ice sheets, along with U-shaped [[valley]]s and termination deposition debris, are the main evidences for an Ice Age, and there is evidence of such [[glacier|glaciation]] covering northern [[Europe]] (including most of [[Britain]]), most of [[Canada]], and into the northern parts of eastern half of the [[United States]].<ref Name="WBE">Ice Age, World Book Encyclopedia 2000 CD ROM</ref>
+
[[Old Earth]] believers claim that several such periods occurred over millions of years of geological time, but this view is disputed by a group of scientists who find evidence for [[Young Earth Creationism]]. See [[Creation Science]] and [[counterexamples to an Ice Age]].
  
During an Ice Age, lowered sea levels due to the water being tied up in glaciers and ice caps would result in [[land bridge]]s in some places where there are now [[ocean]]s and [[strait]]s.
+
==Conflicting theories==
  
According to secular [[geology]], there have been several Ice Ages, the oldest being 2.3 [[billion]] years ago, and the most recent finishing around 11,500 years ago.<ref name="WBE" /><ref name="CAB">Batten, 2007</ref>
+
This theory was developed to attempt to reconcile [[atheistic]] insistence on an [[Old Earth]] with observed evidence suggesting a [[Young Earth]].
[[Young Earth Creationism|Creationary scientists]] believe that there was a single Ice Age that lasted around 700 years following [[Great Flood|Noah's Flood]].<ref name="CAB" />
+
 
 +
==Sea levels==
 +
 
 +
During an Ice Age, sea levels were supposedly much lower due to the water being tied up in glaciers and ice caps would result in [[land bridge]]s in some places where there are now [[ocean]]s and [[strait]]s.
 +
 
 +
==Number of ages==
 +
 
 +
According to atheistic [[geology]], there have been many Ice Ages, the oldest hypothesized one being 2.3 [[billion]] years ago, and the most recent finishing around 11,500 years ago.<ref name="WBE" /><ref name="CAB">Batten, 2007</ref>
 +
 
 +
* The study of the ice ages is remarkably interdisciplinary. To be an expert in this field, a scientist must have a comprehensive knowledge of [[geology]], [[physics]], [[glaciology]], [[oceanography]], [[atmospheric science]], [[celestial mechanics]], [[solar system]] [[astrophysics]], [[cosmic rays]], [[solar physics]], [[interplanetary dust]], [[climate modeling]], [[spectral analysis]], and [[statistics]]. As a consequence, there are no real experts.<ref>[http://muller.lbl.gov/pages/IceAgeBook/preface.html Ice Ages and Astronomical Causes]</ref>
 +
 
 +
==Cooling and warming==
  
 
If the Earth cools down, [[evaporation]] and therefore [[precipitation]] are reduced, so little [[snow]] will fall onto land to form ice sheets.  If the Earth heats up, evaporation and precipitation are increased, but the precipitation falls as rain rather than snow, or melts rather than forming ice sheets.<ref name="CAB" />
 
If the Earth cools down, [[evaporation]] and therefore [[precipitation]] are reduced, so little [[snow]] will fall onto land to form ice sheets.  If the Earth heats up, evaporation and precipitation are increased, but the precipitation falls as rain rather than snow, or melts rather than forming ice sheets.<ref name="CAB" />
  
Creationists argue that the post-Flood environment provides the best explanation for an Ice Age, with the oceans being warmed by the addition of hot [[subterranean]] water, but the land being kept cool by [[volcano|volcanic]] dust in the [[atmosphere]] reflecting much of the sun's [[heat]] back to [[space]].  Thus evaporation and precipitation would be high, without the snow melting because the land was cooler.<ref name="CAB" /><ref>Wieland, Carl, [http://www.creationontheweb.com/content/view/643 Tackling the big freeze, Interview with weather scientist Michael Oard,] ''Creation'' 19(1):42–43, December 1996.</ref>
+
==Agassiz==
  
The [[Bible]] perhaps mentions this Ice Age:
+
The theory was first proposed by [[Louis Agassiz]] in 1837 to try to explain geologic features which until then had been explained by the [[great flood]].<ref>[http://earthguide.ucsd.edu/virtualmuseum/climatechange2/02_1.shtml Discovery of the Great Ice Age]</ref><ref>Aber, James S., [http://academic.emporia.edu/aberjame/histgeol/agassiz/agassiz.htm Jean Louis Rodolphe Agassiz]</ref>
{{Bible quote|From whose womb comes the ice?<br /> &nbsp; &nbsp; Who gives birth to the frost from the heavens<br />when the waters become hard as stone,<br /> &nbsp; &nbsp; when the surface of the deep is frozen?<br />|book=Job|chap=38|verses=28-29|version=NIV}}
+
  
==See Also==
+
==Geological evidence==
 +
 
 +
Earth and rock worn and smoothed by ice sheets, along with U-shaped [[valley]]s and termination deposition debris, known as terminal moraine, are the main evidence for an Ice Age, and there is evidence of such [[glacier|glaciation]] covering northern [[Europe]] (including most of [[Britain]]), most of [[Canada]], and into the northern parts of the eastern half of the [[United States]].<ref Name="WBE">Ice Age, World Book Encyclopedia 2000 CD ROM</ref>
 +
 
 +
==Creationism==
 +
 
 +
[[Young Earth Creationism|Creationary scientists]] believe that there was a single Ice Age that lasted around 700 years following [[Great Flood|Noah's Flood]].<ref name="CAB" />
 +
 
 +
Creationists argue that the post-Flood environment provides the best explanation for an Ice Age, with the oceans being warmed by the addition of hot [[subterranean]] water, but the land being kept cool by [[volcano|volcanic]] dust in the [[atmosphere]] reflecting much of the sun's [[heat]] back to [[outer space|space]].  Thus evaporation and precipitation would be high, without the snow melting because the land was cooler.<ref name="CAB" /><ref>Wieland, Carl, [http://www.creationontheweb.com/content/view/643 Tackling the big freeze, Interview with weather scientist Michael Oard,] ''Creation'' 19(1):42–43, December 1996.</ref>
 +
 
 +
The [[Bible]] perhaps mentions this Ice Age:
 +
{{Bible quote|From whose womb comes the ice?<br /> &nbsp; &nbsp; Who gives birth to the frost from the heavens<br />when the waters become hard as stone,<br /> &nbsp; &nbsp; when the surface of the deep is frozen?<br />|book=Job|chap=38|verses=29-30|version=NIV}}
  
[[Date of Creation]]
+
==See also==
 +
* [[Date of creation]]
 +
* [[Little Ice Age]]
  
 
== Bibliography ==
 
== Bibliography ==
  
* Batten, Don, et. al., 2007, [http://www.creationontheweb.com/images/pdfs/cabook/chapter16.pdf ''What about the Ice Age?''], ''The Creation Answers Book'', Chapter 16
+
* Batten, Don, et al., 2007, [http://www.creationontheweb.com/images/pdfs/cabook/chapter16.pdf ''What about the Ice Age?''], ''The Creation Answers Book'', Chapter 16
 
* Oard, M.J., 1990. An Ice Age Caused by the Genesis Flood, Technical Monograph, Institute for Creation Research, El Cajon, CA,
 
* Oard, M.J., 1990. An Ice Age Caused by the Genesis Flood, Technical Monograph, Institute for Creation Research, El Cajon, CA,
  
Line 28: Line 51:
 
<references />
 
<references />
  
[[Category:Earth science]]
+
[[Category:Earth Sciences]]

Latest revision as of 18:59, November 29, 2019

An Ice Age is a period of Earth's history when ice sheets supposedly covered a much larger part of the planet than is currently the case.

Old Earth believers claim that several such periods occurred over millions of years of geological time, but this view is disputed by a group of scientists who find evidence for Young Earth Creationism. See Creation Science and counterexamples to an Ice Age.

Conflicting theories

This theory was developed to attempt to reconcile atheistic insistence on an Old Earth with observed evidence suggesting a Young Earth.

Sea levels

During an Ice Age, sea levels were supposedly much lower due to the water being tied up in glaciers and ice caps would result in land bridges in some places where there are now oceans and straits.

Number of ages

According to atheistic geology, there have been many Ice Ages, the oldest hypothesized one being 2.3 billion years ago, and the most recent finishing around 11,500 years ago.[1][2]

Cooling and warming

If the Earth cools down, evaporation and therefore precipitation are reduced, so little snow will fall onto land to form ice sheets. If the Earth heats up, evaporation and precipitation are increased, but the precipitation falls as rain rather than snow, or melts rather than forming ice sheets.[2]

Agassiz

The theory was first proposed by Louis Agassiz in 1837 to try to explain geologic features which until then had been explained by the great flood.[4][5]

Geological evidence

Earth and rock worn and smoothed by ice sheets, along with U-shaped valleys and termination deposition debris, known as terminal moraine, are the main evidence for an Ice Age, and there is evidence of such glaciation covering northern Europe (including most of Britain), most of Canada, and into the northern parts of the eastern half of the United States.[1]

Creationism

Creationary scientists believe that there was a single Ice Age that lasted around 700 years following Noah's Flood.[2]

Creationists argue that the post-Flood environment provides the best explanation for an Ice Age, with the oceans being warmed by the addition of hot subterranean water, but the land being kept cool by volcanic dust in the atmosphere reflecting much of the sun's heat back to space. Thus evaporation and precipitation would be high, without the snow melting because the land was cooler.[2][6]

The Bible perhaps mentions this Ice Age:

From whose womb comes the ice?
    Who gives birth to the frost from the heavens
when the waters become hard as stone,
    when the surface of the deep is frozen?
Job 38:29-30 (NIV)

See also

Bibliography

  • Batten, Don, et al., 2007, What about the Ice Age?, The Creation Answers Book, Chapter 16
  • Oard, M.J., 1990. An Ice Age Caused by the Genesis Flood, Technical Monograph, Institute for Creation Research, El Cajon, CA,

Notes

  1. 1.0 1.1 Ice Age, World Book Encyclopedia 2000 CD ROM
  2. 2.0 2.1 2.2 2.3 Batten, 2007
  3. Ice Ages and Astronomical Causes
  4. Discovery of the Great Ice Age
  5. Aber, James S., Jean Louis Rodolphe Agassiz
  6. Wieland, Carl, Tackling the big freeze, Interview with weather scientist Michael Oard, Creation 19(1):42–43, December 1996.