EAPS DLS Department Highlight Series: Andrew Babbin

Andrew Babbin
Wednesday, December 1, 2021 - 4:00pm to 5:00pm

Let it snow! Let it snow! Let it snow! (Marine snow, that is)

Marine snow is a collective term for the various sinking detrital materials that sequester carbon from the surface ocean to depth. How this particulate material is remineralized back to carbon dioxide, at what rate, and by whom, has a slew of implications for the efficiency of this biological carbon pump, the timescales of carbon reemergence, and the overall concentrations of greenhouse gases in the atmosphere. I will discuss a mechanistic framework and some fairly exciting laboratory and numerical experiments aimed at resolving the fundamental drivers that govern this phenomenon, linking the microscale biogeochemistry and physics at which microorganisms operate to the global scale of Earth’s oceans and climate.

About this Series

The Department Lecture Series at EAPS at MIT is a series of Weekly talks given by leading thinkers in the areas of geology, geophysics, geobiology, geochemistry, atmospheric science, oceanography, climatology, and planetary science. For more information please contact: Maggie Cedarstrom, maggie84@mit.edu.