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Increased Emissions: Climate Change, Lines of Evidence
http://www.youtube.com/watch?v=nlu21CNd34Q&list=PL38EB9C0BC54A9EE2&index=4&feature=plpp_video

Board on Atmospheric Science and Climate, The National Research Council and the National Academy of Sciences

This video is one of a seven, Climate Change: Lines of Evidence series, produced by the the National Research Council. It outlines and explains what evidence currently exists in support of humans playing a role in contributing to the rise in atmospheric carbon dioxide levels.

Video length is 5:20 min.

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Learn more about Teaching Climate Literacy and Energy Awareness»

Climate Literacy
About Teaching Climate Literacy

Natural processes driving Earth’s long-term climate variability do not explain the rapid climate change observed in recent decades. The only explanation that is consistent with all available evidence is that human impacts are playing an increasing role in climate change. Future changes in climate may be rapid compared to historical changes.
About Teaching Principle 4
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Human activities have affected the land, oceans, and atmosphere, and these changes have altered global climate patterns. Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.
About Teaching Principle 6
Other materials addressing 6c
man activities are impacting the climate system
About Teaching Principle H
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Benchmarks for Science Literacy
Learn more about the Benchmarks

The earth's climates have changed in the past, are currently changing, and are expected to change in the future, primarily due to changes in the amount of light reaching places on the earth and the composition of the atmosphere. The burning of fossil fuels in the last century has increased the amount of greenhouse gases in the atmosphere, which has contributed to Earth's warming.
Explore the map of concepts related to this benchmark

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

About the Science

  • This video explains why we know that humans have caused greenhouse gas concentrations to increase.
  • Evidence includes measuring atmospheric greenhouse gas inputs and uptakes through direct measurements, satellite measurements, and analysis of carbon isotopes.
  • Passed initial science review - expert science review pending.

About the Pedagogy

  • No additional supporting materials.
  • Video is methodical in its historical approach to the story, providing records of the scientists contributing to the study of CO2 in our atmosphere and greenhouse gas concentrations. Science-heavy video covering a lot of data.
  • Because of the wide variety of data covered in this video, students may need additional support to understand the graphs. URLs for the graphics are listed in the "Related URL" field below.
  • Graphs and other visuals may need more time for real understanding.

Technical Details/Ease of Use

  • Quality of video can be viewed in three different resolutions.

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