Credits

• Page 01: Lake Erie Green

  U.S. EPA

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• Page 01: Lake Erie Clean

  U.S. EPA

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• Page 02: Balanced Ecosystem - Image

  NASA/Goddard Space Flight Center/UMBC

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• Page 03: Basic Nutrients Illustration - Image

  WGBH Educational Foundation

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• Page 04: Nitrogen Cycle - Image

  NASA/Goddard Space Flight Center/UMBC

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• Page 04: Phosphorus cycle - Image

  NASA/Goddard Space Flight Center/UMBC

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• Page 05: Nitrogen and phosphorus graphs - Image

  WGBH Educational Foundation

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• Page 06: Eutrophication Video

  NOAA. What is eutrophication? National Ocean Service website, https://oceanservice.noaa.gov/facts/eutrophication.html, 10/05/17. No copyright, in the public domain.

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• Page 07: Harmful Algal Blooms

  NASA/Goddard Space Flight Center Scientific Visualization Studio

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• Page 08: EPA Nutrient Pollution video

  U.S. EPA

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