For Florida State University Assistant Professor Jeremy Owens, the chemical fingerprints left behind by oxygen in the ancient ocean are the key to better understanding our current and future climate. A fellowship from the Alfred P. Sloan Foundation will give him the opportunity to further investigate the connections between chemical and climatic changes in […]
In ancient oceans that resembled our own, oxygen loss triggered mass extinction
Roughly 430 million years ago, during the Earth’s Silurian Period, global oceans were experiencing changes that would seem eerily familiar today. Melting polar ice sheets meant sea levels were steadily rising, and ocean oxygen was falling fast around the world. At around the same time, a global die-off known among scientists as the Ireviken extinction […]