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  • Britt, Robert Roy. "Moon Mechanics: What Really Makes Our World Go 'Round.", March 18, 2003.
  • Britt, Robert Roy. "When North Becomes South: New Clues to Earth's Magnetic Flip-Flops.", April 7, 2004.
  • "The Carbon Cycle." NASA Earth Observatory.
  • Chown, Marcus. "Solar Wind to Shield Earth During Flip." New Scientist, May 15, 2004.
  • "Cracking the Ice Age." NOVA Online.
  • "Earth's Atmosphere." NASA.
  • "The Earth's Layers." North Dakota University System.
  • Glasner, Joanna. "Earth Hurtles Toward 6.5 Billion." Wired, February 21, 2006.,70238-0.html?­tw=wn_index_1
  • "Global Warming and Our Changing Climate." United States EPA, April 2000.
  • "Global Weather Patterns." BBC.
  • Graham, Steve, et al. "The Water Cycle." NASA Earth Observatory.
  • "The Great Ice Age." U.S. Geological Survey.
  • Hawkes, Nigel. "Waterworld: How will Life on Earth Look in 1000 Years." Times Online, February 17, 2006.,,3-2044465,00.html
  • Herring, David. "Ocean and Climate." NASA Earth Observatory.
  • Illinois State Museum. "Why Are there Ice Ages?"
  • Larson, Josh. "Understanding Global Climate Patterns." USA Today, August 6, 2004.
  • NASA Earth Observatory.
  • Seeds, Michael A. "Foundations of Astronomy." Wadsworth Publishing Company. 1994.
  • Simkin, Tom, et al. "This Dynamic Planet." USGS. 1994.
  • Smith, Lewis and Ben Hoyle. "World Has Only 20 Years to Stop Climate Disaster." Times Online, January 31, 2006.,,2-2017322,00.html
  • "Steam Explosions, Earthquakes, and Volcanic Eruptions - What's in Yellowstone's Future?" Fact Sheet 2005-3024, U.S. Geological Survey.
  • Vastag, Brian. "North Magnetic Pole is Shifting Rapidly Toward Russia." National Geographic. December 15, 2005.
  • "What Is Photosynthesis?" Arizona State University, February 7, 2006.
  • "Why Isn't the Earth Hot as an Oven?" NASA Earth Observatory.