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Estimated contributions to sea-level rise (1993-2003)
http://maps.grida.no/go/graphic/estimated-contributions-to-sea-level-rise-1993-2003

Hugo Ahlenius, UNEP/GRID-Arendal

This is a static visualization, referenced from a UNEP rapid response assessment report entitled In Dead Water, depicting the estimated contributions to sea-level rise from 1993 - 2003.

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Climate Literacy
About Teaching Climate Literacy

Melting of ice sheets and glaciers, combined with the thermal expansion of seawater as the oceans warm, is causing sea level to rise. Seawater is beginning to move onto low-lying land and to contaminate coastal fresh water sources and beginning to submerge coastal facilities and barrier islands. Sea-level rise increases the risk of damage to homes and buildings from storm surges such as those that accompany hurricanes.
About Teaching Principle 7
Other materials addressing 7a

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

  • Educators can use this graphic as an opportunity to discuss why the melting of floating sea ice does not contribute to sea level rise.
  • Suggest downloading the In Dead Water report http://www.grida.no/publications/rr/in2Ddead2Dwater/ to complement the use of the this graphic. Page 32 of the report provides additional background on the graphic, as well as other graphics to supplement not only sea level change but other topics relating to a unit on climate change issues.
  • Be sure that the title and years are made clear to students.

About the Science

  • This visualization from the IPCC Fourth Assessment shows the estimated contributions of the two main sources for sea-level rise: 1) thermal expansion of ocean waters as they warm and 2) increase in the ocean mass principally from land-based sources of ice – glaciers and ice caps and the ice sheets of Greenland and Antarctica. The estimated contributions are compared to observed sea level rise 1993-2003.
  • Passed initial science review - expert science review pending.

About the Pedagogy

  • Resource provides a clear sense of the relative contributions to sea level rise and the comparison between estimated and observed sea level rise.

Technical Details/Ease of Use

  • The graphics can be downloaded in a number of formats.
  • Visualization can be enlarged easily, downloaded, and clearly displays the data well enough for students to understand themselves.

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