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Climate Change Affects Glacial Water Source
http://www.pbslearningmedia.org/resource/ttv10.sci.ess.watcyc.glacialwater/

ThinkTV, Teachers' Domain

This video discusses how the populous areas west of the Andes are largely desert and rely on glacial meltwater as an important source of fresh water. Because the Peruvian glaciers high in the Andes are in rapid retreat, scientists are monitoring the steadily shrinking glaciers and the impact of their reduction on local populations.

Video length: 4:18 minutes.

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Climate Literacy
About Teaching Climate Literacy

Climate plays an important role in the global distribution of freshwater resources. Changing precipitation patterns and temperature conditions will alter the distribution and availability of freshwater resources, reducing reliable access to water for many people and their crops. Winter snowpack and mountain glaciers that provide water for human use are declining as a result of global warming.
About Teaching Principle 7
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Human health and mortality rates will be affected to different degrees in specific regions of the world as a result of climate change. Although cold-related deaths are predicted to decrease, other risks are predicted to rise. The incidence and geographical range of climate-sensitive infectious diseases—such as malaria, dengue fever, and tick-borne diseases—will increase. Drought-reduced crop yields, degraded air and water quality, and increased hazards in coastal and low-lying areas will contribute to unhealthy conditions, particularly for the most vulnerable populations.
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Benchmarks for Science Literacy
Learn more about the Benchmarks

Fresh water, limited in supply, is essential for some organisms and industrial processes. Water in rivers, lakes, and underground can be depleted or polluted, making it unavailable or unsuitable for life.
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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

  • Teaching tips accompany the resource.

About the Science

  • Scientists from the Byrd Polar Research Center, who specialize in glaciers and water quality, discuss water quality and quantity issues related to glacial melt and the potential human impact.
  • Direct link between retreating glaciers and available water resources for Lima, Peru is powerful.
  • Human impact described really well.
  • Comment from expert scientist: The module gives a reasonable explanation of the role of glaciers in the hydrology of Peru. It also introduces some of the water quality issues that might be encountered where water is a scarce resource.

About the Pedagogy

  • A background essay, teaching tips, and link to standards are provided.
  • Links to related videos on this site are provided.

Technical Details/Ease of Use

  • When shown online and in full-screen mode, the image is pixilated. Can be downloaded.

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