It's About Time/AGI

• Proxy Climatic Data, NOAA Paleoclimatology Program
  This site lists and describes the widely-used proxy climate data types.
• Paleoclimates and Pollen
  On this web site, information is offered on the background, trends, and evidence of paleoclimates.

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• Fossil Pollen of the Colorado Plateau, Northern Arizona University
  Learn why fossil pollen is a useful tool for determining paleoclimates.
• Fossil Groups: Spores and Pollen, USGS
  Learn how pollen can yield records of vegetation and community changes over time by exploring this site.
• Investigating Climate Change of Western North America, USGS
  Learn more about climate change and the study of the geological record for Western North America.

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• Why Study Ice Cores, National Ice Core Laboratory (NICL)
  This site includes a brief description about why ice cores are an important source of information.
• How is it done? NICL
  This section of the National Ice Core Laboratory web site takes you step by step through the process of taking, obtaining, studying an ice core.

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• Sea Sediments, Enviropedia
  Learn more about sediments found on the sea floor and information that can be revealed by investigating these sediments, visit this site.

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• What is a Glacier, National Snow and Ice Data Center
  This web site provides information on glacial formation, movement, and associated landforms.

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• Photo Gallery of Trees and Tree Rings, University of Tennessee
  This web site provides photographs about tree-ring research. Each photograph is annotated with captions poses a thought-provoking question.
• Classic References in Dendrochronology, University of Tennessee
  If you are in need of additional resources for tree ring research, visit this site.

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• Greenland Ice Sheet Project 2, National Snow and Ice Data Center
  This web site explores the retrieval of the longest deep-ice core available in history of its kind from the Northern Hemisphere.

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• Magnetic Stripes and Isotopic Clocks, USGS
  This web site provides information on astounding observations of ocean rocks that led to the unlocking of one of ocean's secrets.
• The Use of Biostratigraphy in Different Sediment Types
  This site provides basic information on biostratigraphy in two main environments: terrestrial and marine.

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• North American Drought: A Paleo Perspective, NOAA
  This web site explores paleoclimatic data and how it can provide information about past droughts.
• Climatologist's Toolbox, University of Wisconsin
  Learn how mud sediment in Walden Pond reveals evidence of its past environments by exploring this site.

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