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How Much Warming?

National Research Council, The National Academies

This short video, is the fifth in the National Academies Climate Change, Lines of Evidence series. It focuses on greenhouse gases, climate forcing (natural and human-caused), and global energy balance.

Video length: 5:05 min.

Learn more about Teaching Climate Literacy and Energy Awareness»

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

  • Video could be paused from time to time during viewing for further explanation and questions; it is too dense to show all at once.

About the Content

  • This video documents how human activities are affecting global temperatures.
  • A good treatment of greenhouse gases, climate forcing agents, and feedback loops in climate change.
  • The unit "watt" is used incorrectly in this video. A watt is a unit of power, not energy. Energy is measured in Joules, and can be expressed as a watt multiplied by a unit of time (ex. a kilowatt-hour is a unit of energy, a kilowatt is a unit of power).
  • Comments from expert scientist: Good overview of the science with no major errors.

About the Pedagogy

  • A lot of information is packed into the video - teacher will need to unpack terms and concepts that are presented rather quickly.
  • The other six videos in this series, plus a booklet, and copies of all the graphics and figures used in the booklet are available here: Climate Change: Lines of Evidence. The booklet is also available in Spanish.
  • The National Academy of Science is a highly respected body of scientists, and this is an important point to raise with students.

Technical Details/Ease of Use

  • Good graphics and clear examples are used.
  • Closed-captioned text is available, but there are errors in the text.
  • The video is of sufficient quality to be viewed in full-screen mode for projection.
Entered the Collection: February 2013 Last Reviewed: November 2016

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