Forum Theme 1
When I look at the limestone bedrock of Iowa, as I did just the other day with my daughter (figure 2—[credit: Aaron Spurr, Quarry October 2, 2016]), I see long-term carbon storage. I do not mean a place to sequester modern atmospheric CO2 into the subsurface. Rather, limestones in Iowa and around the world represent carbon that was removed from the atmosphere through geologic processes and stored in these carbonate rocks. Carbon storage in rocks such as limestone and fossil fuels are responsible for the large scale changes in atmospheric CO2 concentrations throughout Earth’s history.
©2017 Alexa Sedlacek
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"Weathering in Iowa: Not What You May Think,"
UNIversitas: Journal of Research, Scholarship, and Creative Activity: Vol. 12:
1, Article 4.
Available at: https://scholarworks.uni.edu/universitas/vol12/iss1/4