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Lee Hotz: Inside an Antarctic Time Machine

Lee Hotz, TED-Ed

In this TED talk, Wall Street Journal science columnist Lee Hotz describes the research of the Western Antarctic Ice Sheet (WAIS) Divide project, in which scientists examine ice core records of climate change in the past to find clues to climate change in the future.

Video length 9:46 min.

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Climate Literacy
About Teaching Climate Literacy

Changes in climate is normal but varies over times/ space
About Teaching Principle 4
Other materials addressing 4d
Evidence is that human impacts are playing an increasing role in climate change
About Teaching Principle 4
Other materials addressing 4f
Natural processes of CO2 removal from atmosphere is slow; Long residence time of some GHG
About Teaching Principle 4
Other materials addressing 4g
Global warming and especially arctic warming is recorded in natural geological and historic records
About Teaching Principle 4
Other materials addressing 4e
Observations are the foundation for understanding the climate system
About Teaching Principle 5
Other materials addressing 5b

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

  • This is meant to be used in a "flipped" lesson. Teachers should explore the Ted-Ed site to learn more about using "flipped lessons".
  • See also other resources on the CLEAN site that can be used to investigate ice cores more closely after watching this video.

About the Science

  • Science columnist Lee Hotz describes the project at WAIS Divide, Antarctica, where a team of scientists drills into ten-thousand-year-old ice cores to extract and analyze vital data on our changing climate.
  • Comments from expert scientist: The video is concise and easy to understand for people not within science fields. The speaker, Lee Hotz, captures interest without using much jargon. This seems like a nice, brief introduction into Antarctic ice drilling.

About the Pedagogy

  • This is a TED-Ed video lecture, which viewers can watch and then take a quick quiz before digging deeper into some other online resources that align with the video.
  • Quick quiz and think questions are for accountability rather than conceptual understanding.

Technical Details/Ease of Use

  • Quality up to 480 pixels. Best viewed online or using a projector.

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