Ariel Anbar, Arizona State University (IMAGE) Arizona State University Caption Ariel Anbar, Arizona State biogeochemist, and an international team of scientists, has taken a significant step toward unlocking the secrets of oxygenation of the Earth's oceans and atmosphere. Credit Tim Trumble Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.