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CREATED:20260513T191756Z
DESCRIPTION:“The role of ocean carbon cycle disruptions in past and present climate transitions”\n\nHumans have emitted an estimated 645 billion metric tons of carbon to Earth’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\nof this disruption depend greatly on Earth’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\nI 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 “mid-Pleistocene transition,” a fundamental shift in\nEarth’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’s anthropogenic carbon emissions and future climate projections.
DTEND;TZID=Pacific/Honolulu:20190124T233000Z
DTSTAMP:20260513T191756Z
DTSTART;TZID=Pacific/Honolulu:20190124T220000Z
LAST-MODIFIED:20260513T191756Z
LOCATION:POST 127 
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:Oceanography Seminar - Jesse Farmer 
TRANSP:OPAQUE
UID:177873587634642web-support-l@lists.hawaii.edu
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