March 22, 2016


Earth and Environmental Sciences

The sea floor holds evidence of how the oceans changed over millions of years and how sea life struggled and survived in the elements. Bärbel Hönisch, a biologist and oceanographer at Columbia University's Lamont-Doherty Earth Observatory, explains how scientists use the chemistry in ancient shells and the behavior of modern ocean microbes to figure out how the ocean environment changed in the past, how sea life responded, and what that can tell us about the future.