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Ice Ages

Ice Ages. By: Nick, Scott, & Sam. Legend–wait for it– dary video. Ice Age The Movie. Louis Agassiz. Swiss naturalist Theory ( p . 421) Not much support for his ideas in Europe Agassiz in America ( p . 423). Glacier Theory of 1800 (3 levels).

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Ice Ages

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  1. Ice Ages By: Nick, Scott, & Sam

  2. Legend–wait for it–dary video Ice Age The Movie

  3. Louis Agassiz • Swiss naturalist • Theory (p. 421) • Not much support for his ideas in Europe • Agassiz in America (p. 423)

  4. Glacier Theory of 1800 (3 levels) • 1. Alpine glaciers - Modern glaciers in the Swiss Alps and Norway had once extended farther down their valleys than today • 2. Mountain ice caps - Glacier cover in the Swiss Alps and Norway had once been much thicker and had ice caps • 3. Continental Ice Sheets - Vast sheet of ice spread from the Arctic and covered all of Europe as far south as the Mediterranean

  5. MilutinMilankovitch • Suggested that Ice Ages have to do with the movement on the Earth (p. 424-425) • Köppen continued on Milankovitch’s ideas (p. 426)

  6. Glacial Map

  7. Glaciers • Largest moving objects on Earth • Massive rivers of ice that form in areas where more snow falls each winter than melts each summer • Glaciers and their Effects

  8. Global Warming Theory #1 • Global sea level has already risen by 4 to 8 inches in the past century • Arctic summers could be ice-free by 2040, and sea levels could rise as much as 23 inches by 2100 if current warming patterns continue • Global Warming - Glacier Melt

  9. Global Warming Theory #2 • Global warming may actually cause an ice age • Theory (p. 431) Could This Cause This?

  10. Bibliography • http://academic.emporia.edu/aberjame/histgeol/agassiz/glacial.htm • http://science.howstuffworks.com/environmental/earth/geophysics/glacier.htm • http://www.nrdc.org/globalwarming/fcons/fcons4.asp

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