The National Science Foundation (NSF) awarded a $127,370 federal Project Grant under the Geosciences (CFDA 47.050) program to the University of Chicago. This 5-year award will support research led by PI Clara Blättler to improve understanding of how Earth's coupled carbon and sulfur cycles evolved after the oxygenation of the atmosphere approximately 2.3 billion years ago. The research will focus on analyzing sedimentary rock samples collected by an international collaboration to reconstruct changes in global carbon and sulfur isotope ratios during this critical transition in Earth's history. The project will also develop hands-on educational kits and outreach activities to promote the history of Earth and its ancient environments through the Field Museum of Natural History in Chicago.
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