I. Antarctica

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I. Antarctica

• Chapter 18

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A. Final Frontier

• Fossils on Antarctica show that dinosaurs and
  mammals once live here
• 98 - Of Antarctica is covered with ice
• Only major landmass without permanent human
  settlement
• 70 - Of the earths fresh water is trap within
  the ice

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Land of Snow Ice
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B. Ice, Ice Baby

• 5,600-7,200 Feet of ice that cover most of the
  land
• Polar Desert Largest and coldest desert on
  earth
• Average temperature in Antarctica is around -71 F
  ?
• Receives less than 2 inches of precipitation per
  year

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Wave Frozen in Midair
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C. More Ice

• Ice Shelf Layer of ice above the ocean that is
  connected to land on one side
• Convergence Zone Area where Antarcticas cold
  waters meet the warm waters of the ocean
• Results in huge storms and winds over 120 MPH

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D. Resources

• Penguins, fish, whales, and many birds live in
  the water around Antarctica
• Krill Shrimp like animals that provide most of
  the food supply
• Scientist believe that resources like gold and
  oil are located on the continent

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Penguins at Home
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E. Sharing the Wealth

• Antarctic Treaty 43 countries agreed not to
  take resources or test nuclear weapons
• Over 20,000 scientists come to study the
  continent each year
• Hope to learn how life was like millions of years
  ago

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U.S. Resource Base
Resource Base Video
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F. Global Warming

• Global Warming Theory that worldwide
  temperatures are rising because of human
  activities and burning fossil fuels
• Average temperatures have risen over 4.5 F in the
  past 50 years
• 2002 A part of the ice shelf broke off
• 1st time this has happened in the last 11,000
  years

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Collapse of the Ice Shelf
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Sorry about your home in the North Pole!
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River of Glacier Ice 2007
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Glacier Melting January 2008
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• Global Warming