Robert A. Rohde, Global Warming Art
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Teaching Tips | Science | Pedagogy |
- Discussion of this visualization should include information about how ice cores are collected and analyzed as well as the Mauna Loa Observatory data.
- Also link to Milankovitch orbital cycles, which play an important role in climate change over millennial scales: http://serc.carleton.edu/resources/36458.html
About the Science
- This figure was developed from credible data sources, e.g. US Department of Energy, Nature Earth and Planetary Science Letters. While the figure does not contain the most recent data from the Mauna Loa Observatory, available elsewhere, it does illustrate several important ice core records.
- The graph clearly shows that since the Industrial Revolution, circa 1800, the burning of fossil fuels has caused a dramatic increase of CO2 in the atmosphere, reaching levels that are likely unprecedented in the last 20 million years.
- Comment from expert scientist: It points out CO2 has a natural variability, but since the industrial revolution, anthropogenic sources have caused changes to the amount of CO2 in the atmosphere beyond the natural variability.
About the Pedagogy
- This visualization illustrates some of the main evidence that the current levels of global carbon dioxide are historically unprecedented. It is central to any discussion of human-induced climate change.
- Discussions around this visualization can include the different sources of CO2 data that scientists validated and merged to produce the graph, including the Vostok Ice Core, EPICA ice core, Law Dome ice core, Siple ice core, and Mauna Loa Observations.
Related URLs These related sites were noted by our reviewers but have not been reviewed by CLEANThis is some background information at: http://www.fs.fed.us/ccrc/climate-basics/climate-primer.shtml where the same figure appears.
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