What Controlled the Rise of Oxygen on Earth?
Explore groundbreaking research challenging established theories on Earth's atmospheric oxygenation in this 37-minute AGU Fall Meeting 2019 press conference. Delve into new findings that question the sources of Earth's 'oxygenation events' from two billion years ago, and examine their implications for understanding oxygen history on Earth and other planets. Learn from experts Joshua Krissansen-Totton, Benjamin Mills, and Noah Planavsky as they discuss nutrient mechanisms, modeling approaches, and the role of escaping hydrogen and mantle chemistry in oxygen production. Gain insights into the gradual increase of oxygen sources, the importance of phosphorus, and engage with questions from reporters and educators on this pivotal topic in Earth's history.