Oceanography Seminar - Jesse Farmer
January 24, 12:00pm - 1:30pm
Mānoa Campus, POST 127
芒鈧揟he role of ocean carbon cycle disruptions in past and present climate transitions芒鈧
Humans have emitted an estimated 645 billion metric tons of carbon to Earth芒鈧劉s surficial carbon cycle in less than 300 years. This massive perturbation to the natural balance of carbon fluxes poses profound consequences to 21st century climate and our society. The implications
of this disruption depend greatly on Earth芒鈧劉s oceans, which are the principal carbon reservoir in direct contact with the atmosphere, and which contain nearly sixty times more carbon than the atmosphere. Here
I will discuss recent developments in geochemistry that allow for quantitative reconstructions of past changes in ocean carbon cycling. I will present new data showing a stark change in deep ocean carbon content during the 芒鈧搈id-Pleistocene transition,芒鈧 a fundamental shift in
Earth芒鈧劉s climate rhythms 1 million years ago. This past view on coupling between the ocean carbon cycle and global climate will be discussed in the context of today芒鈧劉s anthropogenic carbon emissions and future climate projections.
Event Sponsor
Department of Oceanography , Mānoa Campus
More Information
Angel White , 808-956-6220, aewhite@hawaii.edu, , Oceanography Seminar - Jesse Farmer (PDF)