Applied Mathematics Colloquium - Daniel Rothman

Daniel Rothman; Department of Earth, Atmospheric, and Planetary Sciences; Massachusetts Institute of Technology

Excitations of Earth's Carbon Cycle

Mysterious, transient changes in the ocean's store of carbon occur intermittently throughout Earth's history.  Each of these events coincides with climate change; moreover, mass extinctions are always accompanied by such events.  What causes them?  I suggest that many of these events are characteristic nonlinear responses of Earth's carbon cycle to influxes of carbon dioxide that exceed a critical rate. Analysis of the geologic record supports this view and a model of an excitable carbon cycle suggests how it works.  Both show how the relatively slow perturbations of the geologic past may be rescaled to inform our understanding of modern environmental change at much faster timescales.




Dial-In Information

Thursday, December 8, 2022 at 12:00pm to 1:00pm

Benson Earth Sciences, BESC 380
2200 Colorado Avenue, Boulder, CO 80309

Event Type



Science & Technology, Research & Innovation


General Public

College, School & Unit

Engineering & Applied Science

Applied Mathematics
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