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Changing Planet: Warming Lakes

Windows to the Universe/NBC Learn, National Earth Science Teachers Association (NESTA)

The video addresses impact of warming temperatures on major lakes of the world with specific focus on Lake Superior and Lake Tanganyika. It discusses the science of water stratification and its impact on lake ecosystems and on human populations whose livelihoods depend on the lakes.

Video length: 5:13 min.

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Climate Literacy
About Teaching Climate Literacy

Climate impacts ecosystems and past species extinctions
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Evidence shows that human-caused global warming have impacted ecosystem resulting in reduced biodiversity and ecological resilience
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Increased extreme weather events due to 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

  • Teacher should ensure that they are familiar with any technical terminology.

About the Science

  • The video describes how atmospheric warming is contributing to lake warming. The results of this warming is water stratification, which impacts the food chain and water mixing.
  • Researchers use buoys to collect data such as wind speed, air and water temperature, and cloud cover.
  • Comments from expert scientist: Accurate information, qualified by appropriate disclaimers in most cases. Could have clearer identification of assumptions and other limiting factors or uncertainties.

About the Pedagogy

  • The vocabulary and conceptual level of the content is high with technical terms like stratification and upwelling.

Technical Details/Ease of Use

  • The video is high quality and easy to use.
  • A transcript is available, providing another avenue to access the content.

Related URLs These related sites were noted by our reviewers but have not been reviewed by CLEAN

Related Windows to the Universe resource: http://www.windows2universe.org/earth/changing_planet/warming_lakes_intro.html

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