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Ocean Acidification: The Other Carbon Dioxide Problem
https://www.youtube.com/watch?v=9EaLRcVdTbM

NOAA, National Oceanic and Atmospheric Administration

This NOAA video discusses how the ocean absorbs the increased amount of carbon dioxide released into the atmosphere, thereby changing the pH and buffering action of the ocean. These changes in pH are impacting calcifying organisms, such as corals and shellfish, and related food chains and ecosystems.

Video length: 3:58 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

  • Can be used in a chemistry, oceanography, marine biology, biology, ecosystem, environmental science unit on acids and bases/pH.

About the Content

  • The NOAA video discusses the causes of ocean acidification, ocean carbonate chemistry, sampling techniques, and impact of ocean acidification on marine food webs.
  • Comments from expert scientist:
    This is a great resource for ocean acidification and its development/effects on the ocean and humans.
    Scientific strengths:
    - Explanation of pteropod's importance in the ocean ecosystems
    - Clear, simple explanation of how ocean acidification works
    - Presentation of problem
    - Clear hypothesis stated
    - The clear visual example of the depth profile of samples taken by research vessels

    One minor concern is the lack of links to data/references

About the Pedagogy

  • The educator will need to provide context in which to embed this video. A basic pre-knowledge of acids, bases, and chemical formulas would be helpful for better understanding this video.
  • Teachers need to make clear that even though the process is called "ocean acidification" it does not mean that the ocean will become acid, but that the ocean, now slightly alkaline, has diminished carbonate buffering potential.

Technical Details/Ease of Use

  • This is a Flash .f4v download
  • Closed captioned text provided.
Entered the Collection: April 2018 Last Reviewed: November 2011

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