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Acid Oceans

American Museum of Natural History (AMNH)

This video follows biologist Gretchen Hofmann as she studies the effects of ocean acidification on sea urchin larvae.

Video length: 6:38 min.

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Climate Literacy
About Teaching Climate Literacy

Life affects climate; climate affects life
About Teaching Climate Literacy
Other materials addressing Life affects climate; climate affects life
Observations are the foundation for understanding the climate system
About Teaching Principle 5
Other materials addressing 5b
Increased acidity of oceans and negative impacts on food chain due to increasing carbon dioxide levels
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Ecosystems on land and in the ocean have been and will continue to be disturbed by climate change
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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

  • The ocean has absorbed about a third of the carbon dioxide emitted through human activities, altering the pH of the ocean, reducing its buffering.
  • Through the University of California, Santa Barbara, sea urchins are used to set up ocean acidification experiments testing how CO2 affects sea urchins' formation of their calcified parts like spines, exoskeleton and mouth parts.
  • Comments from expert scientist: excellent discussion of real studies of the effects of ocean acidification on development of larval urchins. I would use it in any high school or college class.

About the Pedagogy

  • Background text provided and links to discussion questions provided.
  • Glossary and Additional classroom implementation activity set up to go along with video are available with links and additional background.

Technical Details/Ease of Use

  • Excellent quality.

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