![Psaronius Tree Fern Cross Section](https://www.haverford.edu/sites/default/files/styles/marquee_top_image/public/Homepage/PsaroniusTreeFernCrossSection-homepage.jpg?itok=YWJoWm9-)
Faculty Research - Jonathan Wilson
As part of an interdisciplinary, multi-institutional team, Assistant Professor of Biology Jonathan Wilson published a paper in Nature Geoscience about the implications of the ancient CO2 record for future climate change.
Photo of a cross-section of a fossilized tree fern stem (courtesy of the Smithsonian Natural History Museum) from the Carboniferous Period by Jonathan Wilson.