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Science Nation: Ice Core Secrets Could Reveal Answers to Global Warming
http://www.youtube.com/watch?v=NENZ6TSc1fo

NSF Science Nation, Jim White Arctic and Alpine Research Institute

This video features research conducted at University of Colorado's Institute of Arctic and Alpine Research, which studies isotopes of hydrogen trapped in ice cores to understand climate changes in the past.

Video length is 5:00 min.

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Learn more about Teaching Climate Literacy and Energy Awareness»

Climate Literacy
About Teaching Climate Literacy

Scientific observations indicate that global climate has changed in the past, is changing now, and will change in the future. The magnitude and direction of this change is not the same at all locations on Earth.
About Teaching Principle 4
Other materials addressing 4d
Based on evidence from tree rings, other natural records, and scientific observations made around the world, Earth’s average temperature is now warmer than it has been for at least the past 1,300 years. Average temperatures have increased markedly in the past 50 years, especially in the North Polar Region.
About Teaching Principle 4
Other materials addressing 4e
Environmental observations are the foundation for understanding the climate system. From the bottom of the ocean to the surface of the Sun, instruments on weather stations, buoys, satellites, and other platforms collect climate data. To learn about past climates, scientists use natural records, such as tree rings, ice cores, and sedimentary layers. Historical observations, such as native knowledge and personal journals, also document past climate change.
About Teaching Principle 5
Other materials addressing 5b
Observations, experiments, and theory are used to construct and refine computer models that represent the climate system and make predictions about its future behavior. Results from these models lead to better understanding of the linkages between the atmosphere-ocean system and climate conditions and inspire more observations and experiments. Over time, this iterative process will result in more reliable projections of future climate conditions.
About Teaching Principle 5
Other materials addressing 5c

Energy Literacy

Earth is constantly changing as energy flows through the system.
Other materials addressing:
2.1 Changes in energy flow over time.

Benchmarks for Science Literacy
Learn more about the Benchmarks

Scientific investigations usually involve the collection of relevant data, the use of logical reasoning, and the application of imagination in devising hypotheses and explanations to make sense of the collected data.
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The earth's climates have changed in the past, are currently changing, and are expected to change in the future, primarily due to changes in the amount of light reaching places on the earth and the composition of the atmosphere. The burning of fossil fuels in the last century has increased the amount of greenhouse gases in the atmosphere, which has contributed to Earth's warming.
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Notes From Our Reviewers The CLEAN collection is hand-picked and rigorously reviewed for scientific accuracy and classroom effectiveness. Read what our review team had to say about this resource below or learn more about how CLEAN reviews teaching materials
Teaching Tips | Science | Pedagogy | Technical Details

Teaching Tips

About the Science

  • Video features the lab and work of geoscientist Jim White.
  • The video provides excellent insight into ice core research with an explanation of how ice cores are extracted and analyzed to learn about past climate. The video explains the most recent research on abrupt climate change and a straightforward explanation of what scientists can learn from past climate.
  • Comments from expert scientist: Provides the viewer with a good sense of how ice cores inform our understanding of climate. Engaging visuals provide the viewer with a sense of how data are collected and analyzed to determine past climate variables. Educator should explain how the isotopes of hydrogen relate to temperature because it is not covered in the video.

About the Pedagogy

  • Video does not provide any teaching materials or pedagogy.

Technical Details/Ease of Use

  • Video is produced with professional quality and has excellent graphics and a fast pace.
  • Captions can be utilized to aid audio impaired.

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