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Regulating Greenhouse Gases
http://www.pbslearningmedia.org/resource/kqedcl11.sci.ess.regulatinggreenhousegases/

KQED, Teachers' Domain

This video highlights the work of climate scientists in the Amazon who research the relationship between deforestation, construction of new dams, and increased amounts of greenhouse gases being exchanged between the biosphere and the atmosphere.

Video length is 5:25 min.

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Learn more about Teaching Climate Literacy and Energy Awareness»

Climate Literacy
About Teaching Climate Literacy

The amount of solar energy absorbed or radiated by Earth is modulated by the atmosphere and depends on its composition. Greenhouse gases—such as water vapor, carbon dioxide, and methane—occur naturally in small amounts and absorb and release heat energy more efficiently than abundant atmospheric gases like nitrogen and oxygen. Small increases in carbon dioxide concentration have a large effect on the climate system.
About Teaching Principle 2
Other materials addressing 2c
The abundance of greenhouse gases in the atmosphere is controlled by biogeochemical cycles that continually move these components between their ocean, land, life, and atmosphere reservoirs. The abundance of carbon in the atmosphere is reduced through seafloor accumulation of marine sediments and accumulation of plant biomass and is increased through deforestation and the burning of fossil fuels as well as through other processes.
About Teaching Principle 2
Other materials addressing 2d

Benchmarks for Science Literacy
Learn more about the Benchmarks

Greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, are transparent to much of the incoming sunlight but not to the infrared light from the warmed surface of the earth. When greenhouse gases increase, more thermal energy is trapped in the atmosphere, and the temperature of the earth increases the light energy radiated into space until it again equals the light energy absorbed from the sun.
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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

  • This video would fit in well with a science or geography unit on the Amazon, as well as a study on the carbon cycle, the greenhouse effect, deforestation, or global warming impacts by humans, especially as regards dam building.

About the Science

  • The video discusses a scientist's research on the relationship between the Amazon forest as a carbon dioxide sink, deforestation as a result of building dams, and deforestation's contribution to climate change regarding less carbon dioxide being sequestered and more methane being released from reservoirs and dams.
  • Comments from expert scientist: Good demonstration of climate change relevant measurements, i.e., measuring CO2 flux in the Amazon. Although that the explanation could be more complete. The data used is dated and has an indirect message.

About the Pedagogy

  • Video is accompanied by lesson plan, teacher's guide, transcript, background articles, and workbook for students. These supplmentary materials expand the ease of use of the video within a unit about regulating greenhouse gases.

Technical Details/Ease of Use

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

http://www.kqed.org/education/educators/clue-into-climate/ AND http://www.pbs.org/kqed/oceanadventures/episodes/amazon/

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