S5E4: What can mud reveal about the history of oceans?

Oceans serve as the dominant feature of the Earth. They sustain life, which began in their salty waters, and influence weather and climate.  Despite the significance of Earth’s oceans, much of their history remains a mystery. Katherine Allen, and assistant professor from the School of Earth and Climate Sciences at the University of Maine, looks read more S5E4: What can mud reveal about the history of oceans?