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9.7 Ocean Acidification

Part of Global Change in AP® Environmental Science. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

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Ocean acidification is the decrease in pH of the oceans, primarily due to increased CO₂ concentrations in the atmosphere. Ocean pH has dropped from about 8.2 pre-industrial to about 8.1 today (a 30% increase in hydrogen ion concentration because pH is logarithmic).

In this unit

10 lessons

  1. 9.1Stratospheric Ozone DepletionPreview lesson
  2. 9.2Reducing Ozone DepletionPreview lesson
  3. 9.3The Greenhouse EffectPreview lesson
  4. 9.4Increases in the Greenhouse GasesPreview lesson
  5. 9.5Global Climate ChangePreview lesson
  6. 9.6Ocean WarmingPreview lesson
  7. 9.7Ocean AcidificationThis lesson
  8. 9.8Invasive SpeciesPreview lesson
  9. 9.9Endangered SpeciesPreview lesson
  10. 9.10Human Impacts on BiodiversityPreview lesson

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